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$765+ Cheap flights from Porto (OPO) to Washington

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 1/13. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — SEA
Nov 10 — Nov 171
Sun 11/10
Sun 11/17
1 adult, Economy
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Find flight deals from Porto to Washington

Cheapest flights from Porto to Washington
Explore the most affordable flight options available from Porto to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 5, 2024.

This KLM deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/54:10 pmOPO - SEA
1 stop27h 42mKLM
Sun 12/812:34 pmSEA - OPO
1 stop14h 21mKLM
Deal found 11/4$787
This Gotogate deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2212:30 pmOPO - SEA
1 stop31h 40mLufthansa
Fri 11/293:10 pmSEA - OPO
1 stop24h 25mLufthansa
Deal found 11/5$791
This United Airlines deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/226:00 amOPO - SEA
2 stops24h 37mUnited Airlines
Fri 11/292:00 pmSEA - OPO
1 stop17h 15mUnited Airlines
Deal found 11/5$797
This Booking.com deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/226:30 amOPO - SEA
2 stops23h 37mAir Canada
Fri 11/295:45 amSEA - OPO
2 stops25h 30mAir Canada
Deal found 11/4$805
This Mytrip deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/51:45 pmOPO - SEA
3 stops30h 25mMultiple Airlines
Sun 12/83:10 pmSEA - OPO
3 stops35h 20mMultiple Airlines
Deal found 11/4$807
This American Airlines deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2212:25 pmOPO - SEA
2 stops20h 28mAmerican Airlines
Fri 11/296:50 pmSEA - OPO
2 stops17h 10mAmerican Airlines
Deal found 11/4$811
This Delta deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2211:45 amOPO - SEA
2 stops30h 52mDelta
Fri 11/292:05 pmSEA - OPO
1 stop36h 25mDelta
Deal found 11/5$836
This Gotogate deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/111:00 amOPO - SEA
1 stop38h 05mTurkish Airlines
Sat 12/77:00 pmSEA - OPO
1 stop36h 25mTurkish Airlines
Deal found 11/4$985
This Flighttix deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/58:20 amOPO - SEA
2 stops22h 55mIberia
Sat 12/712:15 amSEA - OPO
2 stops35h 45mIberia
Deal found 11/4$1,099
This Aeromexico deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1111:45 amOPO - SEA
1 stop31h 35mAir France
Sun 12/1511:25 amSEA - OPO
2 stops39h 25mAir France
Deal found 11/4$3,850

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 2,554,862 searches. Data last updated November 5, 2024.

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PortoSeattle

OPO - SEA

OPOSEA

Porto

Mon 1/13

11:15 am-11:50 am

1 stop32h 35m

Seattle/Tacoma Intl

Mon 1/27

12:35 pm-10:50 am

1 stop14h 15m

$765

PortoSeattle

OPO - SEA

OPOSEA

Porto

Mon 1/13

6:20 am-10:25 pm

2 stops24h 05m

Seattle/Tacoma Intl

Mon 1/27

7:30 am-10:50 am

2 stops19h 20m

$769

PortoSeattle

OPO - SEA

OPOSEA

Porto

Fri 11/22

12:30 pm-12:10 pm

1 stop31h 40m

Seattle/Tacoma Intl

Fri 11/29

3:10 pm-11:35 pm

1 stop24h 25m

$791

PortoSeattle

OPO - SEA

OPOSEA

Porto

Fri 11/22

6:00 am-10:37 pm

2 stops24h 37m

Seattle/Tacoma Intl

Fri 11/29

2:00 pm-3:15 pm

1 stop17h 15m

$797

PortoSeattle

OPO - SEA

OPOSEA

Porto

Fri 11/22

6:30 am-10:07 pm

2 stops23h 37m

Seattle/Tacoma Intl

Fri 11/29

5:45 am-3:15 pm

2 stops25h 30m

$805

PortoSeattle

OPO - SEA

OPOSEA

Porto

Fri 11/22

12:25 pm-12:53 am

2 stops20h 28m

Seattle/Tacoma Intl

Fri 11/29

6:50 pm-8:00 pm

2 stops17h 10m

$811

PortoSeattle

OPO - SEA

OPOSEA

Porto

Mon 1/13

5:55 pm-9:30 pm

2 stops35h 35m

Seattle/Tacoma Intl

Mon 1/27

3:15 pm-10:00 pm

3 stops22h 45m

$833

PortoSeattle

OPO - SEA

OPOSEA

Porto

Sun 12/1

11:00 am-5:05 pm

1 stop38h 05m

Seattle/Tacoma Intl

Sat 12/7

7:00 pm-3:25 pm

1 stop36h 25m

$985

PortoSeattle

OPO - SEA

OPOSEA

Porto

Thu 12/5

8:20 am-11:15 pm

2 stops22h 55m

Seattle/Tacoma Intl

Sat 12/7

12:15 am-8:00 pm

2 stops35h 45m

$1,099

PortoSeattle

OPO - SEA

OPOSEA

Porto

Wed 12/11

11:45 am-11:20 am

1 stop31h 35m

Seattle/Tacoma Intl

Sun 12/15

11:25 am-10:50 am

2 stops39h 25m

$3,850

Flights are sorted by cheapest first

Deals found on 11/4

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.

Travel insights for flights from Porto to Washington

Get recent, data-driven insights about flights from Porto to Washington including ideal travel times, pricing trends, and more.

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 $238). Flying from Porto to State of Washington in July is currently the most expensive (average of $411). 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.

Rainfall in Washington by month

Plan your trip to Washington by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in State of Washington ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit State of Washington when rainfall is around 0.7 in.

Temperature in Washington by month

Plan your trip to Washington by taking into account the average temperature totals by month.

If weather is an important factor for your trip to State of Washington, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

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 November 5, 2024.
Peruse reviews from past customers who have flown with KLM, Delta and Lufthansa 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.
Delta
8.0
Very good
8,830 reviews

Food

7.3

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Crew

8.5

Overall

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very good
8,830 reviews
Delta
8.0
Very good
8,830 reviews

Food

7.3

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Crew

8.5

Overall

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM
7.8
Good
1,350 reviews
Delta
8.0
Very good
8,830 reviews

Food

7.3

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Crew

8.5

Overall

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Air France
7.4
Good
1,530 reviews
Delta
8.0
Very good
8,830 reviews

Food

7.3

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Crew

8.5

Overall

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Turkish Airlines
7.4
Good
3,884 reviews
Delta
8.0
Very good
8,830 reviews

Food

7.3

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Crew

8.5

Overall

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines
7.4
Good
9,215 reviews
Delta
8.0
Very good
8,830 reviews

Food

7.3

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Crew

8.5

Overall

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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 $800 on Cheapflights?

    Yes, there are multiple flights from Porto to State of Washington for under $800. The cheapest flight booked recently is on KLM for just $765, but on average you can expect to pay $1,150.

  • Are there last-minute flights available from Porto to State of Washington for under $3,500?

    There are currently 5+ open flights from Porto to State of Washington within the next 7 days for less than $3,500.

  • 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. Wenatchee Pangborn Field Airport (EAT), Spokane Airport (GEG), Pasco Tri Cities Airport (PSC), Everett Paine Field Airport (PAE), Bellingham Airport (BLI) 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 11/5.

  • 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 $238). Flying from Porto to State of Washington in July is currently the most expensive (average of $411). 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 2,554,862 searches. Data last updated November 5, 2024.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$756Average$913FlexibilityNo cancel feeOn-time75%
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