Cheap flights from Porto (OPO) to Washington from $393

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 6/20. 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.
OPO — SEA
jun. 4 — jun. 111

What is the cheapest month to fly from Porto to State of Washington?

Our data shows that December tends to be the cheapest month to fly to State of Washington from Porto. Users have commonly found prices around $1,032 for the month, but tickets can be as low as $790. Due to multiple factors, prepare for potentially higher prices in June.

What is the cheapest time of day to fly from OPO to WA?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Porto to State of Washington as you normally would.

Cheap United Airlines flights from Porto to Washington

Explore cheap flight options specifically provided by United Airlines for the route between Porto and Washington. 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 2,784,634 searches. Data last updated mayo 30, 2024.
Take a look at some of the lowest-priced United Airlines flights heading from Porto to Washington. Make sure to double check the flight details before booking.
sáb. 6/159:15 amOPO - SEA
2 stops21h 28mUnited Airlines
dom. 6/2311:50 pmSEA - OPO
2 stops31h 50mUnited Airlines
Deal found 5/30$863
lun. 6/109:00 amOPO - SEA
1 stop21h 58mUnited Airlines
mar. 6/255:05 amSEA - OPO
2 stops17h 50mUnited Airlines
Deal found 5/29$985
mar. 10/16:00 amOPO - SEA
1 stop14h 15mUnited Airlines
mar. 10/17:46 pmSEA - OPO
2 stops35h 49mUnited Airlines
Deal found 5/29$1,408

Cheap Delta flights from Porto to Washington

Explore cheap flight options specifically provided by Delta for the route between Porto and Washington. 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 2,784,634 searches. Data last updated mayo 30, 2024.
Have a look at some of the cheapest available Delta flights departing from Porto and landing in Washington. Make sure to examine the flight information before completing your reservation.
sáb. 9/76:30 amOPO - SEA
2 stops23h 55mDelta
sáb. 9/217:20 amSEA - OPO
2 stops19h 20mDelta
Deal found 5/30$808
mar. 9/311:25 amOPO - SEA
1 stop30h 55mDelta
lun. 9/236:10 pmSEA - OPO
1 stop20h 05mDelta
Deal found 5/30$926
vie. 9/69:15 amOPO - SEA
1 stop16h 35mDelta
dom. 9/221:30 pmSEA - OPO
1 stop24h 45mDelta
Deal found 5/30$933
mié. 9/49:15 amOPO - SEA
2 stops21h 09mDelta
dom. 9/221:30 pmSEA - OPO
1 stop24h 45mDelta
Deal found 5/30$943
vie. 9/69:15 amOPO - SEA
2 stops21h 08mDelta
dom. 9/221:30 pmSEA - OPO
1 stop24h 45mDelta
Deal found 5/30$952
dom. 9/89:15 amOPO - SEA
2 stops22h 38mDelta
dom. 9/221:30 pmSEA - OPO
1 stop24h 45mDelta
Deal found 5/30$954
sáb. 9/76:30 amOPO - SEA
2 stops23h 55mDelta
sáb. 9/216:10 pmSEA - OPO
1 stop20h 05mDelta
Deal found 5/30$962
mar. 9/36:45 amOPO - SEA
1 stop35h 35mDelta
sáb. 9/216:10 pmSEA - OPO
1 stop20h 05mDelta
Deal found 5/30$978
mié. 9/49:15 amOPO - SEA
2 stops21h 09mDelta
sáb. 9/216:10 pmSEA - OPO
1 stop20h 05mDelta
Deal found 5/30$995

Cheap Porto to Washington flights in May & June 2024

Find cheap flight options from Porto to Washington specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,784,634 searches. Prices were last updated on mayo 30, 2024.
These are some of the most attractive deals on flights from Porto to Washington in 2024. Check back regularly for other flight deals.
sáb. 6/159:15 amOPO - SEA
2 stops21h 28mUnited Airlines
dom. 6/2311:50 pmSEA - OPO
2 stops31h 50mUnited Airlines
Deal found 5/30$863
sáb. 6/159:15 amOPO - SEA
1 stop20h 08mLufthansa
dom. 6/2311:29 pmSEA - OPO
2 stops27h 56mLufthansa
Deal found 5/30$958
lun. 6/312:35 pmOPO - SEA
2 stops20h 24mUnited Airlines
lun. 6/1712:10 pmSEA - OPO
1 stop13h 35mUnited Airlines
Deal found 5/30$970
lun. 6/109:00 amOPO - SEA
1 stop21h 58mUnited Airlines
mar. 6/255:05 amSEA - OPO
2 stops17h 50mUnited Airlines
Deal found 5/29$985
sáb. 6/158:35 amOPO - SEA
2 stops20h 41mMultiple Airlines
dom. 6/235:50 amSEA - OPO
3 stops27h 40mMultiple Airlines
Deal found 5/30$1,094
vie. 5/316:00 amOPO - SEA
2 stops37h 27mUnited Airlines
dom. 6/3012:30 amSEA - OPO
2 stops22h 25mUnited Airlines
Deal found 5/30$1,136
mié. 6/269:15 amOPO - SEA
1 stop16h 20mDelta
mié. 7/310:00 amSEA - OPO
2 stops21h 30mDelta
Deal found 5/29$1,144
mié. 6/269:15 amOPO - SEA
2 stops21h 48mDelta
mié. 7/310:00 amSEA - OPO
2 stops21h 30mDelta
Deal found 5/29$1,152
mié. 6/269:15 amOPO - SEA
1 stop16h 20mMultiple Airlines
mié. 7/31:35 pmSEA - OPO
1 stop17h 55mMultiple Airlines
Deal found 5/29$1,159

Porto to Washington 2024 flight deals

Discover exclusive flight deals for travel between Porto and Washington in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated mayo 30, 2024.
These are some of the most attractive deals on flights from Porto to Washington in 2024. Check back regularly for other flight deals.
sáb. 9/76:30 amOPO - SEA
2 stops23h 55mDelta
sáb. 9/217:20 amSEA - OPO
2 stops19h 20mDelta
Deal found 5/30$808
vie. 9/612:25 pmOPO - SEA
2 stops30h 30mAmerican Airlines
vie. 9/206:00 amSEA - OPO
2 stops21h 40mAmerican Airlines
Deal found 5/30$853
sáb. 6/159:15 amOPO - SEA
2 stops21h 28mUnited Airlines
dom. 6/2311:50 pmSEA - OPO
2 stops31h 50mUnited Airlines
Deal found 5/30$863
jue. 9/58:40 amOPO - SEA
2 stops17h 46mSWISS
lun. 9/231:10 pmSEA - OPO
2 stops24h 15mSWISS
Deal found 5/30$874
mié. 9/46:00 amOPO - SEA
2 stops20h 26mAir Canada
vie. 9/2011:35 amSEA - OPO
2 stops22h 55mAir Canada
Deal found 5/30$884
jue. 9/58:40 amOPO - SEA
2 stops21h 42mMultiple Airlines
vie. 9/202:15 pmSEA - OPO
1 stop17h 40mMultiple Airlines
Deal found 5/30$895
jue. 9/58:40 amOPO - SEA
2 stops17h 46mSWISS
mié. 9/181:10 pmSEA - OPO
2 stops21h 20mSWISS
Deal found 5/30$912
vie. 9/64:50 pmOPO - SEA
1 stop25h 40mTurkish Airlines
vie. 9/206:40 pmSEA - OPO
1 stop37h 45mTurkish Airlines
Deal found 5/30$916
jue. 9/58:40 amOPO - SEA
2 stops21h 42mMultiple Airlines
dom. 9/226:50 pmSEA - OPO
1 stop20h 30mMultiple Airlines
Deal found 5/30$923

One-way flights to Washington from Porto

Search for one-way flight options from Porto to Washington. 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 2,784,634 searches. Data last updated mayo 30, 2024.
Users in need of a one-way flight from Porto to Washington can choose from these deals. Users can also find round-trip Porto to Washington flights by using the search form above.
jue. 6/209:55 pmOPO - SEA
2 stops30h 26mMultiple Airlines
Deal found 5/29$393
jue. 6/2010:55 pmOPO - SEA
3 stops29h 26mMultiple Airlines
Deal found 5/29$493
jue. 6/2010:55 pmOPO - SEA
3 stops29h 26mMultiple Airlines
Deal found 5/30$494
mié. 10/99:55 pmOPO - SEA
3 stops28h 00mMultiple Airlines
Deal found 5/29$504
vie. 10/1110:00 amOPO - SEA
3 stops34h 56mMultiple Airlines
Deal found 5/30$530
jue. 6/206:00 amOPO - SEA
1 stop15h 10mMultiple Airlines
Deal found 5/29$566
vie. 9/279:40 amOPO - SEA
2 stops18h 55mMultiple Airlines
Deal found 5/29$581
jue. 6/206:00 amOPO - SEA
1 stop15h 10mMultiple Airlines
Deal found 5/30$586
vie. 9/274:50 pmOPO - SEA
1 stop25h 40mTurkish Airlines
Deal found 5/29$620

Find flights from Porto to Washington within your budget

Customize your flight search to find flights from Porto to Washington 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 2,784,634 searches. Data last updated mayo 30, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$808 - $938

Route

Depart

Return

Price

PortoSeattle/Tacoma Intl

OPO - SEA

OPOSEA

Porto

sáb. 9/7

2 stops23h 55m

Seattle/Tacoma Intl

sáb. 9/21

2 stops19h 20m

$808

PortoSeattle/Tacoma Intl

OPO - SEA

OPOSEA

Porto

vie. 9/6

2 stops30h 30m

Seattle/Tacoma Intl

vie. 9/20

2 stops21h 40m

$853

PortoSeattle/Tacoma Intl

OPO - SEA

OPOSEA

Porto

sáb. 6/15

2 stops21h 28m

Seattle/Tacoma Intl

dom. 6/23

2 stops31h 50m

$863

PortoSeattle/Tacoma Intl

OPO - SEA

OPOSEA

Porto

jue. 9/5

2 stops17h 46m

Seattle/Tacoma Intl

lun. 9/23

2 stops24h 15m

$874

PortoSeattle/Tacoma Intl

OPO - SEA

OPOSEA

Porto

mié. 9/4

2 stops20h 26m

Seattle/Tacoma Intl

vie. 9/20

2 stops22h 55m

$884

PortoSeattle/Tacoma Intl

OPO - SEA

OPOSEA

Porto

jue. 9/5

2 stops21h 42m

Seattle/Tacoma Intl

vie. 9/20

1 stop17h 40m

$895

PortoSeattle/Tacoma Intl

OPO - SEA

OPOSEA

Porto

vie. 9/6

1 stop25h 40m

Seattle/Tacoma Intl

vie. 9/20

1 stop37h 45m

$916

PortoSeattle/Tacoma Intl

OPO - SEA

OPOSEA

Porto

mar. 9/3

2 stops21h 30m

Seattle/Tacoma Intl

vie. 9/20

2 stops21h 04m

$931

PortoSeattle/Tacoma Intl

OPO - SEA

OPOSEA

Porto

mié. 9/4

2 stops28h 57m

Seattle/Tacoma Intl

lun. 9/23

1 stop22h 05m

$938

Flights are sorted by cheapest first

Deals found on 5/30

No data available for this route at this time. Please check back soon.

Best time to book a flight from Porto to Washington

Have a flexible travel schedule? Discover the best time to fly to Washington from Porto with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines servicing Washington

Get insights into the airlines that provide service to Washington. 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. Reviews last updated mayo 30, 2024.
Peruse reviews from past customers who have flown with United Airlines, Delta and American Airlines from Porto to Washington to help guide your decision. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good
10,457 reviews

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Overall

8.0

Crew

8.6

Food

7.4

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

8.0
Very good
10,457 reviews
8.0
Very good
10,457 reviews

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Overall

8.0

Crew

8.6

Food

7.4

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

7.9
Good
1,520 reviews
8.0
Very good
10,457 reviews

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Overall

8.0

Crew

8.6

Food

7.4

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

7.8
Good
1,954 reviews
8.0
Very good
10,457 reviews

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Overall

8.0

Crew

8.6

Food

7.4

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

7.5
Good
1,730 reviews
8.0
Very good
10,457 reviews

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Overall

8.0

Crew

8.6

Food

7.4

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

7.5
Good
2,869 reviews
8.0
Very good
10,457 reviews

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Overall

8.0

Crew

8.6

Food

7.4

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Related info for your journey

Find useful and relevant information for your journey from Porto to Washington. 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 Porto to Washington?

    Most people fly from Porto (OPO) if they book a flight from Porto to Washington. Porto is conveniently located just 6.8 mi from Porto’s city center.

  • Can I find flights from Porto to State of Washington for under $900 on Cheapflights?

    Yes, there are multiple flights from Porto to State of Washington for under $900. The cheapest flight booked recently is on Delta for just $808, but on average you can expect to pay $914.

  • What are the cheapest airlines to fly from Porto to State of Washington one-way?

    To fly one-way, consider booking your trip with Turkish Airlines, which is currently one of the cheapest options available, starting at $620. Iberia flights start at $672 while deals on American Airlines start at $683 one-way.

  • What does OPO to SEA mean?

    Porto Airport is OPO 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. Spokane Airport (GEG), Pasco Tri Cities Airport (PSC), Bellingham Airport (BLI), Everett Paine Field Airport (PAE), Seattle Lake Union Spb Airport (LKE) are other airports near this flight route and their unique identifiers/IATA codes.

  • Can I find deals for flights from Porto to Washington that include extra baggage allowance?

    The amount of baggage you can bring on your Porto to Washington 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 Porto to Washington with specific airlines?

    Yes, Cheapflights allows you to browse and filter Porto to Washington 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 Porto to Washington that include hotel bookings?

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

  • How can I find direct flights from Porto to Washington?

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

  • Can I find deals for business class flights from Porto to Washington?

    Yes. Cheapflights offers flight deals from Porto to Washington 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 Porto to Washington that allow pets onboard?

    Many airlines flying from Porto to Washington 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 Porto to Washington?

    Yes, you can often find last-minute deals on Porto to Washington 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 Porto to State of Washington flight deals updated?

    The Porto to State of Washington flight deals you see on this page were last updated on 5/30.

  • What is the cheapest month to book a flight from Porto to State of Washington?

    Currently, January is the cheapest month in which you can book a flight from Porto to State of Washington (average of $247). Flying from Porto to State of Washington in July is currently the most expensive (average of $406). 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.

See more FAQs

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Top airline flying from Porto to Washington

Discover the top airline that operate flights from Porto to Washington. 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 2,784,634 searches. Data last updated mayo 30, 2024.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$700Average$986FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Search flights from Porto to Washington by cabin class

Find flights from Porto to Washington, based on your preferred cabin class, be it economy, premium economy, business, or first class.

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 Porto to Washington?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Porto to Washington. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Porto to Washington?

Cheapflights simply makes it quick and affordable to book flights from Porto to Washington by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Porto to Washington with no change fees?

Need flexible booking options for your flight to Washington from Porto? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Porto to Washington become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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