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Cheap flights from Harlingen to Seattle (HRL - SEA) from $320

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/18. 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.
HRL — SEA
May 10 — May 171
From?
To?
Fri 5/10
Fri 5/17
1 adult, Economy
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The best prices from Harlingen Valley Intl to Seattle/Tacoma Intl are usually found in February or March, booked 38 days in advance, depart on a Tuesday or Friday and return on a Wednesday

Cheap flight deals from Harlingen to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Harlingen (HRL) to Seattle (SEA). 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 5, 2024.

Popular in

July

Cheapest in

February

Average price

$593

Round-trip from

$245
High demand for flights, 28% potential price rise
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Best time to find cheap flights, 39% potential price drop
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Average for round-trip flights in May 2024
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From Harlingen Valley Intl to Seattle/Tacoma Intl
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What is the cheapest day to fly round-trip from Harlingen, Texas to Seattle?

Flights from Harlingen, Texas to Seattle are found to be more expensive on Friday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Seattle.

How far in advance should I book a flight from Harlingen, Texas to Seattle?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 38 days in advance, which can save you up to 95% on flights from Harlingen, Texas to Seattle compared to booking the week you need them. Waiting 38 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 $535. For sooner than that we have options available in the next 3 days from $593.

What is the cheapest month to fly from Harlingen, Texas to Seattle?

February is one of the best times of the year to fly to Seattle from Harlingen, Texas. Prices for February average $496 per person but you can even find prices for as low as $252. The most expensive prices can be found in the month of July. Opting for a February flight can save you 38% on your journey compared to booking in July

When is the cheapest time to fly from Harlingen, Texas to Seattle (HRL - SEA)?

It’s typically best to fly out from Harlingen, Texas to Seattle in the morning. Doing so could potentially save you 23% on the flight price compared to flying at noon, which is usually more expensive.

Cheap American Airlines flights from Harlingen to Seattle

Explore cheap flight options specifically provided by American Airlines for the route between Harlingen and Seattle. 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 2,719,943 searches. Data last updated May 5, 2024.
Peruse some of the lowest-priced American Airlines flights we've found from Harlingen to Seattle. It's recommended that users confirm their flight details before booking.
Wed 9/1810:05 amHRL - SEA
1 stop6h 36mAmerican Airlines
Tue 9/245:43 amSEA - HRL
1 stop8h 16mAmerican Airlines
Deal found 5/4$320
Wed 9/1810:05 amHRL - SEA
2 stops11h 40mAmerican Airlines
Tue 9/2411:59 pmSEA - HRL
1 stop7h 59mAmerican Airlines
Deal found 5/4$345
Wed 9/1810:05 amHRL - SEA
2 stops11h 40mAmerican Airlines
Tue 9/246:36 amSEA - HRL
2 stops9h 25mAmerican Airlines
Deal found 5/4$370
Fri 10/2510:05 amHRL - SEA
1 stop6h 36mAmerican Airlines
Fri 11/111:59 pmSEA - HRL
1 stop8h 07mAmerican Airlines
Deal found 5/4$423
Fri 10/254:30 pmHRL - SEA
2 stops9h 29mAmerican Airlines
Fri 11/111:59 pmSEA - HRL
1 stop8h 07mAmerican Airlines
Deal found 5/4$478
Fri 10/256:03 amHRL - SEA
1 stop7h 46mAmerican Airlines
Thu 10/311:43 amSEA - HRL
1 stop6h 23mAmerican Airlines
Deal found 5/4$486
Sat 5/1812:22 pmHRL - SEA
2 stops10h 28mAmerican Airlines
Fri 5/241:15 amSEA - HRL
1 stop6h 32mAmerican Airlines
Deal found 5/4$494
Sun 10/278:09 pmHRL - SEA
1 stop15h 28mAmerican Airlines
Mon 11/411:59 pmSEA - HRL
1 stop8h 07mAmerican Airlines
Deal found 5/4$518
Fri 10/254:30 pmHRL - SEA
2 stops9h 29mAmerican Airlines
Thu 10/311:43 amSEA - HRL
1 stop6h 23mAmerican Airlines
Deal found 5/4$541

Cheap United Airlines flights from Harlingen to Seattle

Explore cheap flight options specifically provided by United Airlines for the route between Harlingen and Seattle. 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 2,719,943 searches. Data last updated May 5, 2024.
Some of the lowest-priced United Airlines flights we've found at this time heading from Harlingen to Seattle. Ensure the flight price, dates, time, and airline match your criteria before you book.
Sat 5/185:00 amHRL - SEA
1 stop7h 14mUnited Airlines
Sat 5/2511:50 pmSEA - HRL
1 stop9h 05mUnited Airlines
Deal found 5/4$599
Sun 10/277:27 amHRL - SEA
1 stop6h 53mUnited Airlines
Mon 11/48:52 amSEA - HRL
2 stops12h 22mUnited Airlines
Deal found 5/4$631
Sat 7/137:25 amHRL - SEA
1 stop17h 28mUnited Airlines
Mon 7/1511:59 pmSEA - HRL
1 stop8h 50mUnited Airlines
Deal found 5/4$650
Sat 7/137:25 amHRL - SEA
2 stops17h 10mUnited Airlines
Mon 7/1511:59 pmSEA - HRL
1 stop8h 50mUnited Airlines
Deal found 5/4$655
Mon 5/1312:10 pmHRL - SEA
1 stop9h 06mUnited Airlines
Tue 5/145:00 amSEA - HRL
2 stops14h 14mUnited Airlines
Deal found 5/4$675
Fri 10/257:27 amHRL - SEA
2 stops15h 48mUnited Airlines
Fri 11/111:50 pmSEA - HRL
2 stops13h 44mUnited Airlines
Deal found 5/4$693
Sun 10/277:27 amHRL - SEA
2 stops12h 42mUnited Airlines
Mon 11/48:52 amSEA - HRL
2 stops12h 22mUnited Airlines
Deal found 5/4$749
Mon 5/135:00 amHRL - SEA
1 stop7h 14mUnited Airlines
Tue 5/147:15 amSEA - HRL
1 stop8h 24mUnited Airlines
Deal found 5/4$756

Cheap Harlingen to Seattle flights in May & June 2024

Find cheap flight options from Harlingen to Seattle specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,719,943 searches. Prices were last updated on May 5, 2024.
The lowest fares we've come across on flights traveling from Harlingen to Seattle in May and June 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Sat 5/1812:22 pmHRL - SEA
2 stops10h 28mAmerican Airlines
Fri 5/241:15 amSEA - HRL
1 stop6h 32mAmerican Airlines
Deal found 5/4$494
Sat 5/1812:22 pmHRL - SEA
2 stops10h 28mAmerican Airlines
Sat 5/255:20 amSEA - HRL
1 stop6h 27mAmerican Airlines
Deal found 5/4$557
Sat 5/185:54 amHRL - SEA
1 stop15h 27mAmerican Airlines
Fri 5/241:15 amSEA - HRL
1 stop8h 35mAmerican Airlines
Deal found 5/4$582
Sat 5/185:00 amHRL - SEA
1 stop7h 14mUnited Airlines
Sat 5/2511:50 pmSEA - HRL
1 stop9h 05mUnited Airlines
Deal found 5/4$599
Sat 5/1812:22 pmHRL - SEA
2 stops10h 28mAmerican Airlines
Sat 5/257:00 amSEA - HRL
2 stops11h 34mAmerican Airlines
Deal found 5/4$628
Mon 5/1312:10 pmHRL - SEA
1 stop9h 06mUnited Airlines
Tue 5/145:00 amSEA - HRL
2 stops14h 14mUnited Airlines
Deal found 5/4$675
Mon 5/135:00 amHRL - SEA
1 stop7h 14mUnited Airlines
Tue 5/147:15 amSEA - HRL
1 stop8h 24mUnited Airlines
Deal found 5/4$756
Mon 5/1310:25 amHRL - SEA
2 stops14h 40mAmerican Airlines
Mon 5/131:15 amSEA - HRL
1 stop8h 35mAmerican Airlines
Deal found 5/4$780
Mon 5/1310:25 amHRL - SEA
1 stop9h 24mAmerican Airlines
Mon 5/131:15 amSEA - HRL
1 stop6h 32mAmerican Airlines
Deal found 5/4$781

Harlingen to Seattle 2024 flight deals

Discover exclusive flight deals for travel between Harlingen and Seattle in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,719,943 searches. Data last updated May 5, 2024.
The lowest fares we've come across on flights traveling from Harlingen to Seattle in May and June 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Wed 9/1810:05 amHRL - SEA
1 stop6h 36mAmerican Airlines
Tue 9/245:43 amSEA - HRL
1 stop8h 16mAmerican Airlines
Deal found 5/4$320
Wed 9/1810:05 amHRL - SEA
2 stops11h 40mAmerican Airlines
Tue 9/2411:59 pmSEA - HRL
1 stop7h 59mAmerican Airlines
Deal found 5/4$345
Wed 9/1810:05 amHRL - SEA
2 stops11h 40mAmerican Airlines
Tue 9/246:36 amSEA - HRL
2 stops9h 25mAmerican Airlines
Deal found 5/4$370
Fri 10/2510:05 amHRL - SEA
1 stop6h 36mAmerican Airlines
Fri 11/111:59 pmSEA - HRL
1 stop8h 07mAmerican Airlines
Deal found 5/4$423
Fri 10/254:30 pmHRL - SEA
2 stops9h 29mAmerican Airlines
Fri 11/111:59 pmSEA - HRL
1 stop8h 07mAmerican Airlines
Deal found 5/4$478
Fri 10/256:03 amHRL - SEA
1 stop7h 46mAmerican Airlines
Thu 10/311:43 amSEA - HRL
1 stop6h 23mAmerican Airlines
Deal found 5/4$486
Sat 5/1812:22 pmHRL - SEA
2 stops10h 28mAmerican Airlines
Fri 5/241:15 amSEA - HRL
1 stop6h 32mAmerican Airlines
Deal found 5/4$494
Sun 10/278:09 pmHRL - SEA
1 stop15h 28mAmerican Airlines
Mon 11/411:59 pmSEA - HRL
1 stop8h 07mAmerican Airlines
Deal found 5/4$518
Fri 10/254:30 pmHRL - SEA
2 stops9h 29mAmerican Airlines
Thu 10/311:43 amSEA - HRL
1 stop6h 23mAmerican Airlines
Deal found 5/4$541

Harlingen to Seattle flights leaving soon

Find last-minute flight options from Harlingen to Seattle 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 2,719,943 searches. Data last updated May 5, 2024.
Check out these flights departing soon from Harlingen to Seattle. Users should examine the flight details to ensure there are no surprises.
Mon 5/1312:10 pmHRL - SEA
1 stop9h 06mUnited Airlines
Tue 5/145:00 amSEA - HRL
2 stops14h 14mUnited Airlines
Deal found 5/4$675
Mon 5/135:00 amHRL - SEA
1 stop7h 14mUnited Airlines
Tue 5/147:15 amSEA - HRL
1 stop8h 24mUnited Airlines
Deal found 5/4$756
Mon 5/1310:25 amHRL - SEA
2 stops14h 40mAmerican Airlines
Mon 5/131:15 amSEA - HRL
1 stop8h 35mAmerican Airlines
Deal found 5/4$780
Mon 5/1310:25 amHRL - SEA
1 stop9h 24mAmerican Airlines
Mon 5/131:15 amSEA - HRL
1 stop6h 32mAmerican Airlines
Deal found 5/4$781

Find flights from Harlingen to Seattle within your budget

Customize your flight search to find flights from Harlingen to Seattle 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 2,719,943 searches. Data last updated May 5, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$320 - $650

Route

Depart

Return

Price

Harlingen Valley IntlSeattle/Tacoma Intl

HRL - SEA

HRLSEA

Harlingen Valley Intl

Wed 9/18

1 stop6h 36m

Seattle/Tacoma Intl

Tue 9/24

1 stop8h 16m

$320

Harlingen Valley IntlSeattle/Tacoma Intl

HRL - SEA

HRLSEA

Harlingen Valley Intl

Wed 9/18

2 stops11h 40m

Seattle/Tacoma Intl

Tue 9/24

1 stop7h 59m

$345

Harlingen Valley IntlSeattle/Tacoma Intl

HRL - SEA

HRLSEA

Harlingen Valley Intl

Wed 9/18

2 stops11h 40m

Seattle/Tacoma Intl

Tue 9/24

2 stops9h 25m

$370

Harlingen Valley IntlSeattle/Tacoma Intl

HRL - SEA

HRLSEA

Harlingen Valley Intl

Fri 10/25

1 stop6h 36m

Seattle/Tacoma Intl

Fri 11/1

1 stop8h 07m

$423

Harlingen Valley IntlSeattle/Tacoma Intl

HRL - SEA

HRLSEA

Harlingen Valley Intl

Fri 10/25

2 stops9h 29m

Seattle/Tacoma Intl

Fri 11/1

1 stop8h 07m

$478

Harlingen Valley IntlSeattle/Tacoma Intl

HRL - SEA

HRLSEA

Harlingen Valley Intl

Fri 10/25

1 stop7h 46m

Seattle/Tacoma Intl

Thu 10/31

1 stop6h 23m

$486

Harlingen Valley IntlSeattle/Tacoma Intl

HRL - SEA

HRLSEA

Harlingen Valley Intl

Sat 5/18

1 stop7h 14m

Seattle/Tacoma Intl

Sat 5/25

1 stop9h 05m

$599

Harlingen Valley IntlSeattle/Tacoma Intl

HRL - SEA

HRLSEA

Harlingen Valley Intl

Sun 10/27

1 stop6h 53m

Seattle/Tacoma Intl

Mon 11/4

2 stops12h 22m

$631

Harlingen Valley IntlSeattle/Tacoma Intl

HRL - SEA

HRLSEA

Harlingen Valley Intl

Sat 7/13

1 stop17h 28m

Seattle/Tacoma Intl

Mon 7/15

1 stop8h 50m

$650

Flights are sorted by cheapest first

Deals found on 5/4

When is the best time to book a flight from Harlingen, Texas to Seattle?

Use this chart to determine the optimal time to book a round-trip flight from Harlingen to Seattle. Price data was last updated on May 3, 2024.
The best time to book flights from Harlingen, Texas to Seattle is 37 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Search Deals

When is the cheapest time to fly from Harlingen, Texas to Seattle?

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

Average price of flights to Seattle by month

Plan your trip from Harlingen to Seattle by taking into account the cheapest months to travel. The average price of a one-way flight from Harlingen to Seattle is currently $0 while a round-trip flight costs $478. Price data was last updated on April 28, 2024.

Currently, December is the cheapest month in which you can book a flight from Harlingen, Texas to Seattle (average of $245). Flying from Harlingen, Texas to Seattle in July is currently the most expensive (average of $408). 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

$247

February

$254

March

$288

April

$294

May

$320

June

$406

July

$408

August

$343

September

$278

October

$257

November

$258

December

$245

Temperature and rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average temperature and rainfall totals by month.

SEA

Temperature

41 - 66.2 °F

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated May 5, 2024.
Peruse reviews from past customers who have flown with American Airlines and United Airlines from Harlingen to Seattle to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
11,118 reviews
Check prices

Food

6.7

Comfort

7.2

Entertainment

7.1

Overall

7.4

Boarding

7.7

Crew

8.1

Reviews

1 / 10

The staff were pleasant. There was no food or entertainment.

United Airlines
7.4
Good
11,118 reviews
United Airlines
7.4
Good
11,118 reviews
Check prices

Food

6.7

Comfort

7.2

Entertainment

7.1

Overall

7.4

Boarding

7.7

Crew

8.1

Reviews

1 / 10

The staff were pleasant. There was no food or entertainment.

American Airlines
7.3
Good
14,713 reviews
United Airlines
7.4
Good
11,118 reviews
Check prices

Food

6.7

Comfort

7.2

Entertainment

7.1

Overall

7.4

Boarding

7.7

Crew

8.1

Reviews

1 / 10

The staff were pleasant. There was no food or entertainment.

Related info for your journey

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

  • Can I find flights from Harlingen, Texas to Seattle for under $400 on Cheapflights?

    Yes, there are multiple flights from Harlingen, Texas to Seattle for under $400. The cheapest flight booked recently is on American Airlines for just $320, but on average you can expect to pay $552.

  • Are there last-minute flights available from Harlingen, Texas to Seattle for under $700?

    There are currently 4+ open flights from Harlingen, Texas to Seattle within the next 7 days for less than $700.

  • What are the cheapest airlines flying from Harlingen, Texas to Seattle round-trip?

    American Airlines, at $320, was found to be the cheapest airline from Harlingen, Texas to Seattle. An alternate airline flying to your destination would be United Airlines. American Airlines is currently priced 35% below the average price you’ll pay for this route.

  • What does HRL to SEA mean?

    Harlingen Valley Intl Airport is HRL and Seattle/Tacoma Intl Airport is SEA. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service.

  • Can I find deals for flights from Harlingen to Seattle that include extra baggage allowance?

    The amount of baggage you can bring on your Harlingen to Seattle 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 Harlingen to Seattle with specific airlines?

    Yes, Cheapflights allows you to browse and filter Harlingen to Seattle 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 Harlingen to Seattle that include hotel bookings?

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

  • How can I find direct flights from Harlingen to Seattle?

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

  • Can I find deals for business class flights from Harlingen to Seattle?

    Yes. Cheapflights offers flight deals from Harlingen to Seattle 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 Harlingen to Seattle that allow pets onboard?

    Many airlines flying from Harlingen to Seattle 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 Harlingen to Seattle?

    Yes, you can often find last-minute deals on Harlingen to Seattle 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 Harlingen, Texas to Seattle flight deals updated?

    The Harlingen, Texas to Seattle flight deals you see on this page were last updated on 5/4.

See more FAQs

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Top 2 airlines flying from Harlingen to Seattle

Discover the top 2 airlines that operate flights from Harlingen to Seattle. 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 2,719,943 searches. Data last updated May 5, 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$309Average$484FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapest$310Average$518FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
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Harlingen, Texas to Seoul flights

Search flights from Harlingen to Seattle by cabin class

Find flights from Harlingen to Seattle, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Harlingen to Seattle?

When you search for this flight from Harlingen to Seattle, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Harlingen to Seattle?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Harlingen to Seattle for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Harlingen to Seattle with no change fees?

Certainly. Search results for flights to Seattle from Harlingen shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Harlingen to Seattle become cheaper?

Of course! You can now track prices for flights from Harlingen to Seattle and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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