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Cheap flights from Seattle (SEA) to Washington, D.C. (WAS) from $70

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/28. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
SEA — WAS
May 8 — May 151
From?
To?
Wed 5/8
Wed 5/15
1 adult, Economy
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The best prices from Seattle/Tacoma Intl to Washington, D.C. are usually found in January or February, booked 42 days in advance, depart on a Thursday or Tuesday and return on a Tuesday

Cheap flight deals from Seattle to Washington, D.C.

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Washington, D.C. (WAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 3, 2024.

Popular in

June

Cheapest in

January

Round-trip from

$234

One-way from

$114
High demand for flights, 25% potential price rise
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Best time to find cheap flights, 35% potential price drop
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From Seattle/Tacoma Intl to Washington, D.C. (WAS)
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One-way flight from Seattle/Tacoma Intl to Washington, D.C. (WAS)
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What is the cheapest day to fly round-trip from Seattle to Washington, D.C.?

Wednesday is generally a great day to depart. Flying on this day could help you save up to 24%.

How far in advance should I book a flight from Seattle to Washington, D.C.?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 43 days in advance, which can save you up to 90% on flights from Seattle to Washington, D.C. compared to booking the week you need them. Waiting 43 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $388. For sooner than that we have options available in the next 3 days from $573.

What is the cheapest month to fly from Seattle to Washington, D.C.?

January is one of the best times of the year to fly to Washington, D.C. from Seattle. Prices for January average $402 per person but you can even find prices for as low as $128. The most expensive prices can be found in the month of June. Opting for a January flight can save you 33% on your journey compared to booking in June

When is the cheapest time to fly from Seattle to Washington, D.C. (SEA - WAS)?

When flying from Seattle to Washington, D.C., the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 19% versus a flight at noon.

Cheap Alaska Airlines flights from Seattle to Washington, D.C.

Explore cheap flight options specifically provided by Alaska Airlines for the route between Seattle and Washington, D.C.. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,899,487 searches. Data last updated May 3, 2024.
Take a look at some of the lowest-priced Alaska Airlines flights heading from Seattle to Washington, D.C.. It's recommended that users confirm their flight details before booking.
Tue 5/2811:28 pmSEA - IAD
Nonstop5h 12mAlaska Airlines
Wed 6/57:00 amIAD - SEA
Nonstop5h 30mAlaska Airlines
Deal found 5/1$275
Tue 5/2811:28 pmSEA - IAD
Nonstop5h 12mAlaska Airlines
Tue 6/46:10 pmIAD - SEA
Nonstop5h 40mAlaska Airlines
Deal found 5/2$277
Sun 5/264:00 pmSEA - IAD
Nonstop4h 59mAlaska Airlines
Wed 6/57:00 amIAD - SEA
Nonstop5h 30mAlaska Airlines
Deal found 5/1$280
Sat 6/19:00 amSEA - IAD
Nonstop5h 08mAlaska Airlines
Tue 6/46:10 pmIAD - SEA
Nonstop5h 40mAlaska Airlines
Deal found 5/1$281
Sat 6/14:00 pmSEA - IAD
Nonstop4h 59mAlaska Airlines
Wed 6/57:00 amIAD - SEA
Nonstop5h 30mAlaska Airlines
Deal found 5/2$283
Tue 5/289:40 pmSEA - BWI
Nonstop5h 00mAlaska Airlines
Tue 6/47:05 amBWI - SEA
Nonstop5h 41mAlaska Airlines
Deal found 5/1$294
Wed 5/299:40 pmSEA - BWI
Nonstop5h 00mAlaska Airlines
Tue 6/47:05 amBWI - SEA
Nonstop5h 41mAlaska Airlines
Deal found 5/1$304
Thu 5/309:40 pmSEA - BWI
Nonstop5h 00mAlaska Airlines
Tue 6/47:05 amBWI - SEA
Nonstop5h 41mAlaska Airlines
Deal found 5/1$314
Thu 6/64:00 pmSEA - IAD
Nonstop4h 59mAlaska Airlines
Sun 6/97:00 amIAD - SEA
Nonstop5h 30mAlaska Airlines
Deal found 5/2$323

  • Alaska Airlines is one of the most popular airlines used for those traveling from Seattle to Washington, D.C.. Flights on this route from Alaska Airlines typically cost $463.93 RT, a price that is 59% cheaper than the average Seattle to Washington, D.C. flight. The cheapest flight found was $128 RT. Seattle/Tacoma Intl Airport is the most common Seattle airport to take off from when flying to Washington, D.C.. Washington, D.C. Dulles Intl Airport is the most popular arrival airport in Washington, D.C.. When flying from Seattle to Washington, D.C., Alaska Airlines flights are 11% more popular than any other airline flying that same route.

Cheap United Airlines flights from Seattle to Washington, D.C.

Explore cheap flight options specifically provided by United Airlines for the route between Seattle and Washington, D.C.. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,899,487 searches. Data last updated May 3, 2024.
Some of the lowest-priced United Airlines flights we've found at this time heading from Seattle to Washington, D.C.. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.
Tue 5/2811:55 pmSEA - IAD
1 stop7h 00mUnited Airlines
Tue 6/48:40 amIAD - SEA
Nonstop5h 47mUnited Airlines
Deal found 5/2$286
Fri 5/2411:29 pmSEA - IAD
Nonstop4h 59mUnited Airlines
Wed 5/296:15 pmIAD - SEA
1 stop9h 31mUnited Airlines
Deal found 5/2$292
Thu 5/3011:05 amSEA - IAD
1 stop8h 59mUnited Airlines
Sun 6/210:15 pmIAD - SEA
Nonstop5h 44mUnited Airlines
Deal found 5/3$298
Sat 5/257:25 pmSEA - IAD
1 stop8h 29mUnited Airlines
Wed 5/296:15 pmIAD - SEA
1 stop9h 31mUnited Airlines
Deal found 5/2$302
Thu 5/3011:29 pmSEA - IAD
Nonstop4h 59mUnited Airlines
Thu 6/610:15 pmIAD - SEA
Nonstop5h 44mUnited Airlines
Deal found 5/2$307
Thu 5/2312:45 pmSEA - IAD
Nonstop4h 59mUnited Airlines
Thu 5/3010:15 pmIAD - SEA
Nonstop5h 44mUnited Airlines
Deal found 5/2$339
Fri 5/2410:25 pmSEA - IAD
Nonstop4h 59mUnited Airlines
Fri 6/75:23 pmIAD - SEA
Nonstop5h 47mUnited Airlines
Deal found 5/2$346
Thu 5/2312:45 pmSEA - IAD
Nonstop4h 59mUnited Airlines
Mon 5/2710:15 pmIAD - SEA
Nonstop5h 44mUnited Airlines
Deal found 5/2$357
Wed 5/85:44 amSEA - BWI
1 stop8h 33mUnited Airlines
Sat 5/186:19 pmBWI - SEA
1 stop9h 39mUnited Airlines
Deal found 5/3$424

  • If you’re traveling from Seattle to Washington, D.C., one of the more common airlines traveling that route is United Airlines. Flights from United Airlines traveling this route typically cost $483.90 RT. This price is typically 59% more expensive than other airlines that offer Seattle to Washington, D.C. flights. When booking this route, the cheapest RT price found was $159. The most popular departure airport in Seattle when flying to Washington, D.C. is Seattle/Tacoma Intl Airport. The most popular airport to fly into when visiting Washington, D.C. is Washington, D.C. Dulles Intl Airport. When flying from Seattle to Washington, D.C., United Airlines flights are 11% more popular than any other airline flying that same route.

Cheap Seattle to Washington, D.C. flights in May & June 2024

Find cheap flight options from Seattle to Washington, D.C. specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,899,487 searches. Prices were last updated on May 3, 2024.
Check out some of the best flight deals from Seattle to Washington, D.C. in 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Tue 5/289:40 pmSEA - BWI
1 stop12h 53mSpirit Airlines
Tue 6/42:25 pmBWI - SEA
1 stop21h 07mSpirit Airlines
Deal found 5/3$143
Tue 5/289:40 pmSEA - BWI
1 stop12h 53mSpirit Airlines
Tue 6/42:25 pmBWI - SEA
1 stop21h 07mSpirit Airlines
Deal found 5/2$148
Tue 5/289:40 pmSEA - BWI
1 stop12h 53mSpirit Airlines
Tue 6/46:30 amBWI - SEA
3 stops29h 02mSpirit Airlines
Deal found 5/3$167
Tue 5/289:40 pmSEA - BWI
1 stop12h 53mSpirit Airlines
Tue 6/49:33 amBWI - SEA
2 stops25h 59mSpirit Airlines
Deal found 5/3$172
Tue 5/289:40 pmSEA - BWI
1 stop12h 53mSpirit Airlines
Tue 6/49:34 amBWI - SEA
2 stops25h 58mSpirit Airlines
Deal found 5/2$175
Tue 5/219:40 pmSEA - BWI
2 stops20h 26mSpirit Airlines
Mon 6/39:20 pmBWI - SEA
1 stop14h 25mSpirit Airlines
Deal found 5/3$176
Tue 5/289:40 pmSEA - BWI
1 stop12h 53mSpirit Airlines
Tue 6/46:30 amBWI - SEA
3 stops29h 02mSpirit Airlines
Deal found 5/2$177
Tue 5/289:35 amSEA - BWI
1 stop24h 58mSpirit Airlines
Tue 6/46:30 amBWI - SEA
3 stops29h 02mSpirit Airlines
Deal found 5/1$187
Wed 6/59:41 pmSEA - BWI
1 stop11h 58mFrontier
Tue 6/118:48 pmBWI - SEA
1 stop13h 18mFrontier
Deal found 5/2$193

Seattle to Washington, D.C. 2024 flight deals

Discover exclusive flight deals for travel between Seattle and Washington, D.C. in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,899,487 searches. Data last updated May 3, 2024.
Check out some of the best flight deals from Seattle to Washington, D.C. in 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Tue 5/289:40 pmSEA - BWI
1 stop12h 53mSpirit Airlines
Tue 6/42:25 pmBWI - SEA
1 stop21h 07mSpirit Airlines
Deal found 5/3$143
Tue 5/289:40 pmSEA - BWI
1 stop12h 53mSpirit Airlines
Tue 6/42:25 pmBWI - SEA
1 stop21h 07mSpirit Airlines
Deal found 5/2$148
Tue 5/289:40 pmSEA - BWI
1 stop12h 53mSpirit Airlines
Tue 6/46:30 amBWI - SEA
3 stops29h 02mSpirit Airlines
Deal found 5/3$167
Tue 5/289:40 pmSEA - BWI
1 stop12h 53mSpirit Airlines
Tue 6/49:33 amBWI - SEA
2 stops25h 59mSpirit Airlines
Deal found 5/3$172
Tue 5/289:40 pmSEA - BWI
1 stop12h 53mSpirit Airlines
Tue 6/49:34 amBWI - SEA
2 stops25h 58mSpirit Airlines
Deal found 5/2$175
Tue 5/219:40 pmSEA - BWI
2 stops20h 26mSpirit Airlines
Mon 6/39:20 pmBWI - SEA
1 stop14h 25mSpirit Airlines
Deal found 5/3$176
Tue 5/289:40 pmSEA - BWI
1 stop12h 53mSpirit Airlines
Tue 6/46:30 amBWI - SEA
3 stops29h 02mSpirit Airlines
Deal found 5/2$177
Tue 5/289:35 amSEA - BWI
1 stop24h 58mSpirit Airlines
Tue 6/46:30 amBWI - SEA
3 stops29h 02mSpirit Airlines
Deal found 5/1$187
Wed 6/59:41 pmSEA - BWI
1 stop11h 58mFrontier
Tue 6/118:48 pmBWI - SEA
1 stop13h 18mFrontier
Deal found 5/2$193

Non-stop flights to Washington, D.C. from Seattle

Discover non-stop flight options from Seattle to Washington, D.C.. Find direct flights with no layovers, providing a convenient travel experience. Explore non-stop flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 2,899,487 searches. Data last updated May 3, 2024.
To help reduce your travel time, choose from one of these non-stop flights from Seattle to Washington, D.C.. Users seeking other options on flights from Seattle to Washington, D.C. should update the search form at the top of the page.
Tue 5/2811:28 pmSEA - IAD
Nonstop5h 12mAlaska Airlines
Wed 6/57:00 amIAD - SEA
Nonstop5h 30mAlaska Airlines
Deal found 5/1$275
Tue 5/2811:28 pmSEA - IAD
Nonstop5h 12mAlaska Airlines
Tue 6/46:10 pmIAD - SEA
Nonstop5h 40mAlaska Airlines
Deal found 5/2$277
Sun 5/264:00 pmSEA - IAD
Nonstop4h 59mAlaska Airlines
Wed 6/57:00 amIAD - SEA
Nonstop5h 30mAlaska Airlines
Deal found 5/1$280
Sat 6/19:00 amSEA - IAD
Nonstop5h 08mAlaska Airlines
Tue 6/46:10 pmIAD - SEA
Nonstop5h 40mAlaska Airlines
Deal found 5/1$281
Sat 5/2511:28 pmSEA - IAD
Nonstop5h 12mAlaska Airlines
Wed 5/299:05 amIAD - SEA
Nonstop5h 30mAlaska Airlines
Deal found 5/2$283
Sun 5/269:00 amSEA - IAD
Nonstop5h 08mAlaska Airlines
Sun 6/27:00 amIAD - SEA
Nonstop5h 30mAlaska Airlines
Deal found 5/1$287
Thu 5/3010:22 pmSEA - IAD
Nonstop5h 03mDelta
Sun 6/27:31 amIAD - SEA
Nonstop5h 49mDelta
Deal found 5/3$289
Tue 5/2810:22 pmSEA - IAD
Nonstop5h 03mDelta
Sat 6/85:36 pmIAD - SEA
Nonstop5h 55mDelta
Deal found 5/1$290
Sun 5/2610:22 pmSEA - IAD
Nonstop5h 03mDelta
Tue 6/47:31 amIAD - SEA
Nonstop5h 49mDelta
Deal found 5/2$293

Seattle to Washington, D.C. flights leaving soon

Find last-minute flight options from Seattle to Washington, D.C. for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,899,487 searches. Data last updated May 3, 2024.
Have a look at some of the last-minute flights available departing from Seattle to Washington, D.C.. It's wise to confirm all flight details are correct before booking.
Mon 5/138:20 amSEA - DCA
1 stop24h 40mFrontier
Wed 5/157:00 amDCA - SEA
1 stop28h 30mFrontier
Deal found 5/3$227
Mon 5/138:20 amSEA - DCA
1 stop24h 40mFrontier
Fri 5/177:00 amDCA - SEA
1 stop17h 24mFrontier
Deal found 5/3$234
Mon 5/135:02 pmSEA - DCA
1 stop15h 58mFrontier
Tue 5/217:00 amDCA - SEA
1 stop27h 04mFrontier
Deal found 5/3$244
Fri 5/1010:34 pmSEA - DCA
1 stop16h 27mFrontier
Wed 5/157:00 amDCA - SEA
1 stop28h 30mFrontier
Deal found 5/3$249
Fri 5/106:03 pmSEA - DCA
1 stop20h 58mFrontier
Sat 5/187:00 amDCA - SEA
1 stop17h 08mFrontier
Deal found 5/3$257
Mon 5/135:02 pmSEA - DCA
1 stop15h 58mFrontier
Mon 5/206:57 pmDCA - SEA
1 stop27h 17mFrontier
Deal found 5/3$258
Mon 5/139:40 pmSEA - BWI
1 stop12h 53mMultiple Airlines
Wed 5/1512:29 pmBWI - SEA
1 stop23h 01mMultiple Airlines
Deal found 5/2$259
Mon 5/139:40 pmSEA - BWI
1 stop12h 53mSpirit Airlines
Tue 5/286:30 amBWI - SEA
3 stops29h 15mSpirit Airlines
Deal found 5/2$260
Fri 5/1010:34 pmSEA - BWI
1 stop10h 26mFrontier
Wed 5/1512:29 pmBWI - SEA
1 stop23h 01mFrontier
Deal found 5/3$261

One-way flights to Washington, D.C. from Seattle

Search for one-way flight options from Seattle to Washington, D.C.. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,899,487 searches. Data last updated May 3, 2024.
Take a look at some of the best available options we've come across on one-way flights from Seattle to Washington, D.C.. Users needing a return flight from Seattle to Washington, D.C. should utilize the search form above.
Tue 5/289:40 pmSEA - BWI
1 stop12h 53mSpirit Airlines
Deal found 5/1$70
Tue 5/289:40 pmSEA - BWI
1 stop12h 53mSpirit Airlines
Deal found 5/2$71
Tue 5/289:35 amSEA - BWI
1 stop24h 58mSpirit Airlines
Deal found 5/1$73
Wed 6/58:40 pmSEA - DCA
1 stop8h 11mJetBlue
Deal found 5/1$84
Tue 5/289:40 pmSEA - BWI
3 stops20h 45mSpirit Airlines
Deal found 5/1$90
Wed 5/229:40 pmSEA - BWI
1 stop12h 48mSpirit Airlines
Deal found 5/2$92
Wed 6/59:41 pmSEA - BWI
1 stop11h 58mFrontier
Deal found 5/1$95
Wed 6/59:28 amSEA - BWI
2 stops28h 03mSpirit Airlines
Deal found 5/2$96
Tue 5/289:40 pmSEA - BWI
2 stops21h 59mSpirit Airlines
Deal found 5/1$99

Find flights from Seattle to Washington, D.C. within your budget

Customize your flight search to find flights from Seattle to Washington, D.C. that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,899,487 searches. Data last updated May 3, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$148 - $306

Route

Depart

Return

Price

Seattle/Tacoma IntlBaltimore/Washington

SEA - BWI

SEABWI

Seattle/Tacoma Intl

Tue 5/28

1 stop12h 53m

Baltimore/Washington

Tue 6/4

1 stop21h 07m

$148

Seattle/Tacoma IntlBaltimore/Washington

SEA - BWI

SEABWI

Seattle/Tacoma Intl

Tue 5/28

1 stop12h 53m

Baltimore/Washington

Tue 6/4

2 stops25h 58m

$175

Seattle/Tacoma IntlBaltimore/Washington

SEA - BWI

SEABWI

Seattle/Tacoma Intl

Wed 6/5

1 stop11h 58m

Baltimore/Washington

Tue 6/11

1 stop13h 18m

$193

Seattle/Tacoma IntlBaltimore/Washington

SEA - BWI

SEABWI

Seattle/Tacoma Intl

Fri 5/31

1 stop16h 35m

Baltimore/Washington

Tue 6/4

1 stop21h 07m

$198

Seattle/Tacoma IntlBaltimore/Washington

SEA - BWI

SEABWI

Seattle/Tacoma Intl

Thu 5/30

1 stop7h 19m

Baltimore/Washington

Tue 6/4

1 stop8h 25m

$258

Seattle/Tacoma IntlWashington, D.C. Dulles Intl

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

Thu 6/13

1 stop9h 58m

Washington, D.C. Dulles Intl

Sun 6/16

1 stop17h 54m

$270

Seattle/Tacoma IntlWashington, D.C. Dulles Intl

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

Tue 5/28

Nonstop5h 12m

Washington, D.C. Dulles Intl

Wed 6/5

Nonstop5h 30m

$275

Seattle/Tacoma IntlWashington, D.C. Dulles Intl

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

Tue 5/28

1 stop7h 00m

Washington, D.C. Dulles Intl

Tue 6/4

Nonstop5h 47m

$286

Seattle/Tacoma IntlWashington, D.C. Reagan-National

SEA - DCA

SEADCA

Seattle/Tacoma Intl

Tue 7/30

1 stop9h 21m

Washington, D.C. Reagan-National

Tue 8/13

1 stop8h 28m

$306

Flights are sorted by cheapest first

Deals found on 5/2

When is the best time to book a flight from Seattle to Washington, D.C.?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Washington, D.C.. Price data was last updated on January 28, 2024.
The price you pay for your flight from Seattle to Washington, D.C. may vary depending on when you book. For the best chance of a lower fare, look to book 42 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Search Deals

When is the cheapest time to fly from Seattle to Washington, D.C.?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Washington, D.C.. Price data was last updated on April 28, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Seattle to Washington, D.C. flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to Washington, D.C. by month

Plan your trip from Seattle to Washington, D.C. by taking into account the cheapest months to travel. The average price of a one-way flight from Seattle to Washington, D.C. is currently $86 while a round-trip flight costs $234. Price data was last updated on April 28, 2024.

Currently, September is the cheapest month in which you can book a flight from Seattle to Washington, D.C. (average of $281). Flying from Seattle to Washington, D.C. in June is currently the most expensive (average of $398). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

January

$308

February

$303

March

$358

April

$337

May

$337

June

$398

July

$378

August

$296

September

$281

October

$303

November

$328

December

$291

Temperature and rainfall in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average temperature and rainfall totals by month.

WAS

Temperature

35.6 - 80.6 °F

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Washington, D.C.. Reviews last updated May 3, 2024.
See what other customers who have flown with Alaska Airlines, United Airlines and Delta from Seattle to Washington, D.C. have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
9,128 reviews
Check prices

Comfort

7.9

Food

7.3

Crew

8.6

Entertainment

7.3

Overall

8.1

Boarding

8.2

Reviews

1 / 10

I paid for an aisle seat and found I was bumped to the middle seat. No entertainment at all, bathroom was so tiny, a woman had a hard time in there. Seems it was considered for men only. This was my first time on Alaska airlines. I don’t think I want to fly on Alaska Airlines again.

Alaska Airlines
8.1
Very good
9,128 reviews
Alaska Airlines
8.1
Very good
9,128 reviews
Check prices

Comfort

7.9

Food

7.3

Crew

8.6

Entertainment

7.3

Overall

8.1

Boarding

8.2

Reviews

1 / 10

I paid for an aisle seat and found I was bumped to the middle seat. No entertainment at all, bathroom was so tiny, a woman had a hard time in there. Seems it was considered for men only. This was my first time on Alaska airlines. I don’t think I want to fly on Alaska Airlines again.

Delta
8.1
Very good
10,848 reviews
Alaska Airlines
8.1
Very good
9,128 reviews
Check prices

Comfort

7.9

Food

7.3

Crew

8.6

Entertainment

7.3

Overall

8.1

Boarding

8.2

Reviews

1 / 10

I paid for an aisle seat and found I was bumped to the middle seat. No entertainment at all, bathroom was so tiny, a woman had a hard time in there. Seems it was considered for men only. This was my first time on Alaska airlines. I don’t think I want to fly on Alaska Airlines again.

JetBlue
7.6
Good
4,552 reviews
Alaska Airlines
8.1
Very good
9,128 reviews
Check prices

Comfort

7.9

Food

7.3

Crew

8.6

Entertainment

7.3

Overall

8.1

Boarding

8.2

Reviews

1 / 10

I paid for an aisle seat and found I was bumped to the middle seat. No entertainment at all, bathroom was so tiny, a woman had a hard time in there. Seems it was considered for men only. This was my first time on Alaska airlines. I don’t think I want to fly on Alaska Airlines again.

United Airlines
7.4
Good
11,134 reviews
Alaska Airlines
8.1
Very good
9,128 reviews
Check prices

Comfort

7.9

Food

7.3

Crew

8.6

Entertainment

7.3

Overall

8.1

Boarding

8.2

Reviews

1 / 10

I paid for an aisle seat and found I was bumped to the middle seat. No entertainment at all, bathroom was so tiny, a woman had a hard time in there. Seems it was considered for men only. This was my first time on Alaska airlines. I don’t think I want to fly on Alaska Airlines again.

American Airlines
7.3
Good
14,755 reviews
Alaska Airlines
8.1
Very good
9,128 reviews
Check prices

Comfort

7.9

Food

7.3

Crew

8.6

Entertainment

7.3

Overall

8.1

Boarding

8.2

Reviews

1 / 10

I paid for an aisle seat and found I was bumped to the middle seat. No entertainment at all, bathroom was so tiny, a woman had a hard time in there. Seems it was considered for men only. This was my first time on Alaska airlines. I don’t think I want to fly on Alaska Airlines again.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Washington, D.C.. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Seattle to Washington, D.C.?

    Seattle/Tacoma Intl (SEA), located 11.4 mi from the city center, is the airport you fly out of when you book flights from Seattle to Washington, D.C.. 8 airlines have flights from Seattle/Tacoma Intl to Washington, D.C. on a regular basis. Booking flights from Seattle/Tacoma Intl to Washington, D.C. should not be difficult; the airport handles an average of 21 outbound flights to Washington, D.C. per day.

  • Can I find flights from Seattle to Washington, D.C. for under $200 on Cheapflights?

    Yes, there are multiple flights from Seattle to Washington, D.C. for under $200. The cheapest flight booked recently is on Spirit Airlines for just $148, but on average you can expect to pay $196.

  • Are there nonstop flights from Seattle to Washington, D.C. for under $300 on Cheapflights?

    Cheapflights has at least 20 direct flights from Seattle to Washington, D.C. under $300. A good price for a nonstop flight from Seattle to Washington, D.C. is less than $294.

  • Are there last-minute flights available from Seattle to Washington, D.C. for under $300?

    There are currently 20+ open flights from Seattle to Washington, D.C. within the next 7 days for less than $300.

  • What days are nonstop flights available from Seattle to Washington, D.C.?

    Days when nonstop flights are available for this flight are: Sunday, Tuesday, Friday.

  • How many flights depart from Seattle to Washington, D.C. on average per day?

    Per day, 5 flights depart from Seattle to Washington, D.C. on average.
    Morning (6am - Noon) - 40% of flight departures
    Afternoon (Noon - 6pm) - 60% of flight departures

  • How long is the flight from Seattle to Washington, D.C.?

    A quick flight from Seattle to Washington, D.C. can take about 11h 58m. Spirit Airlines provides one of the quickest options available for as low as $148. The distance between Seattle and Washington, D.C. is about 2313 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Seattle to Washington, D.C. round-trip?

    Our cheapest airline available from Seattle to Washington, D.C. is Spirit Airlines. Our recent data shows that you can find tickets from as low as $148 on this airline. An additional option worth looking into is Frontier, starting at $193. Spirit Airlines is currently priced 63% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Seattle to Washington, D.C. one-way?

    The cheapest airline one-way is Spirit Airlines, with whom users have recently found tickets for as low as $70. However, be on the lookout for offers from JetBlue and Frontier, as they are both options that can get you from Seattle to Washington, D.C. for a low price.

  • What are the most popular routes from Seattle to Washington, D.C.?

    The most popular flight routes from Seattle to Washington, D.C. are Seattle/Tacoma Intl - Washington, D.C. Dulles Intl, Seattle/Tacoma Intl - Washington, D.C. Reagan-National and Seattle/Tacoma Intl - Baltimore/Washington.

  • What are the most popular airlines that fly from Seattle to Washington, D.C.?

    American Airlines, Alaska Airlines and Delta are the most popular airlines when flying from Seattle to Washington, D.C..

  • What are the most reliable airlines from Seattle to Washington, D.C.?

    No one likes to see their flight delayed. When booking a flight from Seattle to Washington, D.C. consider choosing Ethiopian Air (96%), Scandinavian Airlines (94%) or United Airlines (93%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Seattle to Washington, D.C.?

    While on average a flight from Seattle to Washington, D.C. is generally $822, our data shows the cheapest flight currently is $130. When looking at the most popular route, (Seattle/Tacoma Intl - Washington, D.C. Dulles Intl), you can expect to pay $282 for that flight.

  • What does SEA to IAD mean?

    SEA stands for Seattle/Tacoma Intl Airport, while IAD stands for Washington, D.C. Dulles Intl Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry. Baltimore/Washington Airport (BWI), Washington, D.C. Reagan-National Airport (DCA) are other airports near this flight route and their unique identifiers/IATA codes.

  • Where are the most common layover locations when flying from Seattle to Washington, D.C.?

    Flights departing from Seattle and landing in Washington, D.C. layover in Chicago most frequently.

  • What are some popular things to do or see while on a layover in Chicago?

    Grant Park, Magnificent Mile, and Wrigley Field are the most popular attractions in Chicago if you're in need of something to do during your layover. Grant Park, Magnificent Mile, and Wrigley Field can be visited by traveling about 16.2 mi, 15.5 mi, and 13.0 mi respectively from Chicago O'Hare Intl. Those on a layover in Chicago in need of a rental car can book one at Chicago O'Hare Intl for about $56.

  • Where are the least popular layover locations for Seattle to Washington, D.C. flights?

    Of the flights from Seattle to Washington, D.C. that have layovers, the fewest flights stop in Denver.

  • Can I find deals for flights from Seattle to Washington, D.C. that include extra baggage allowance?

    The amount of baggage you can bring on your Seattle to Washington, D.C. flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Seattle to Washington, D.C. with specific airlines?

    Yes, Cheapflights allows you to browse and filter Seattle to Washington, D.C. flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Seattle to Washington, D.C. that include hotel bookings?

    Yes. In addition to deals on Seattle to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Washington, D.C.?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Washington, D.C..

  • Can I find deals for business class flights from Seattle to Washington, D.C.?

    Yes. Cheapflights offers flight deals from Seattle to Washington, D.C. by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Seattle to Washington, D.C. that allow pets onboard?

    Many airlines flying from Seattle to Washington, D.C. offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Seattle to Washington, D.C.?

    Yes, you can often find last-minute deals on Seattle to Washington, D.C. flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Seattle to Washington, D.C. flight deals updated?

    The Seattle to Washington, D.C. flight deals you see on this page were last updated on 5/3.

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Alternative routes for Seattle to Washington, D.C.
See prices for flight routes from nearby airports that may be better suited for you.

Seattle to Dulles Intl flights
Seattle to Reagan-National flights
Spokane to Dulles Intl flights
Spokane to Reagan-National flights
Pasco to Dulles Intl flights
Pasco to Reagan-National flights
Bellingham to Reagan-National flights
Wenatchee to Dulles Intl flights
Pullman to Dulles Intl flights
Bellingham to Dulles Intl flights
Pullman to Reagan-National flights
Yakima to Reagan-National flights
Yakima to Dulles Intl flights
Walla Walla to Reagan-National flights
Walla Walla to Dulles Intl flights
Wenatchee to Reagan-National flights

Top 8 airlines flying from Seattle to Washington, D.C.

Discover the top 8 airlines that operate flights from Seattle to Washington, D.C.. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,899,487 searches. Data last updated May 3, 2024.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$114Average$309FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
DeltaCheapest$128Average$464FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Spirit AirlinesCheapest$134Average$351FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
FrontierCheapest$138Average$249FlexibilityNo cancel feeOn-time62%
Search Frontier flights
Alaska AirlinesCheapest$159Average$484FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
United AirlinesCheapest$210Average$405FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapest$225Average$430FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Sun Country AirCheapest$286Average$506FlexibilityNo cancel feeOn-time83%
Search Sun Country Air flights
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Search flights from Seattle to Washington, D.C. by cabin class

Find flights from Seattle to Washington, D.C., based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

Hourly flight availability from Seattle to Washington, D.C.

Find hourly flight availability from Seattle to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 3, 2024.
3%of flight departuresEarly morningMidnight to 6 am
46%of flight departuresMorning6 am to noon
28%of flight departuresAfternoonNoon to 6 pm
23%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from Seattle to Washington, D.C.

Explore weekly flight availability from Seattle to Washington, D.C.. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated May 3, 2024.
Sunday22daily flights
Monday23daily flights
Tuesday20daily flights
Wednesday21daily flights
Thursday20daily flights
Friday22daily flights
Saturday22daily flights

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How does Cheapflights help users find flights from Seattle to Washington, D.C.?

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Why should you use Cheapflights to find cheap flight tickets from Seattle to Washington, D.C.?

Cheapflights helps you find that perfect flight to Washington, D.C. from Seattle by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Seattle to Washington, D.C. with no change fees?

Yes, we can. To see specific flights from Seattle to Washington, D.C. with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Seattle to Washington, D.C. become cheaper?

Yes, Cheapflights offers price alerts on Seattle to Washington, D.C. flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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