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$742+ 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 2/9. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — SEA
Dec 23 — Dec 301
Mon 12/23
Mon 12/30
1 adult, Economy
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Cheap flight deals from Porto to Washington

Discover tips and strategies to find the most affordable flight options for your journey from Porto (OPO) to Washington (USWA). 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 December 18, 2024.

Round-trip from

$742
(Mytrip)
From Porto to Washington
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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 December 18, 2024.

This KLM deal was found by Cheapflights users on 12/18. 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.
Sat 12/288:05 pmOPO - SEA
1 stop23h 47mKLM
Sun 1/52:14 pmSEA - OPO
1 stop24h 06mKLM
Deal found 12/18$1,016
This United Airlines deal was found by Cheapflights users on 12/18. 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.
Sat 12/286:00 amOPO - SEA
2 stops47h 20mUnited Airlines
Sun 1/53:10 pmSEA - OPO
2 stops40h 15mUnited Airlines
Deal found 12/18$1,098
This Mytrip deal was found by Cheapflights users on 12/18. 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.
Sat 12/286:55 amOPO - SEA
3 stops33h 10mMultiple Airlines
Sun 1/53:10 pmSEA - OPO
3 stops20h 25mMultiple Airlines
Deal found 12/18$1,431

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 2,558,603 searches. Data last updated December 18, 2024.

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Depart

Return

Price

PortoSeattle

OPO - SEA

OPOSEA

Porto

Sun 2/9

2:50 pm-2:21 pm

3 stops31h 31m

Seattle/Tacoma Intl

Mon 2/17

2:35 pm-7:15 pm

2 stops20h 40m

$742

PortoSeattle

OPO - SEA

OPOSEA

Porto

Thu 1/16

6:00 am-9:30 pm

2 stops47h 30m

Seattle/Tacoma Intl

Thu 1/23

2:00 pm-3:10 pm

1 stop17h 10m

$777

PortoSeattle

OPO - SEA

OPOSEA

Porto

Fri 4/18

6:15 am-4:59 pm

1 stop18h 44m

Seattle/Tacoma Intl

Fri 4/25

6:50 pm-11:20 pm

1 stop20h 30m

$795

PortoSeattle

OPO - SEA

OPOSEA

Porto

Mon 1/13

11:15 am-11:51 am

1 stop32h 36m

Seattle/Tacoma Intl

Sun 1/19

12:30 pm-10:55 am

1 stop14h 25m

$801

PortoSeattle

OPO - SEA

OPOSEA

Porto

Sun 4/20

5:00 am-4:17 pm

2 stops19h 17m

Seattle/Tacoma Intl

Sun 4/27

1:35 pm-3:30 pm

1 stop17h 55m

$812

PortoSeattle

OPO - SEA

OPOSEA

Porto

Sat 4/19

8:40 am-9:30 pm

2 stops20h 50m

Seattle/Tacoma Intl

Sun 4/27

6:05 am-6:30 pm

2 stops28h 25m

$839

PortoSeattle

OPO - SEA

OPOSEA

Porto

Fri 4/18

10:45 am-5:10 pm

1 stop38h 25m

Seattle/Tacoma Intl

Sat 4/26

7:05 pm-9:45 am

1 stop30h 40m

$936

PortoSeattle

OPO - SEA

OPOSEA

Porto

Sun 4/20

8:40 am-9:15 pm

2 stops20h 35m

Seattle/Tacoma Intl

Sat 4/26

2:50 pm-6:30 pm

2 stops19h 40m

$1,380

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

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 December 18, 2024.
Peruse reviews from past customers who have flown with United Airlines and KLM 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
8,604 reviews

Food

7.3

Entertainment

7.9

Crew

8.6

Overall

8.0

Boarding

8.2

Comfort

7.9

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
8,604 reviews
Delta
8.0
Very good
8,604 reviews

Food

7.3

Entertainment

7.9

Crew

8.6

Overall

8.0

Boarding

8.2

Comfort

7.9

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
1,349 reviews
Delta
8.0
Very good
8,604 reviews

Food

7.3

Entertainment

7.9

Crew

8.6

Overall

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

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

SWISS
7.6
Good
1,606 reviews
Delta
8.0
Very good
8,604 reviews

Food

7.3

Entertainment

7.9

Crew

8.6

Overall

8.0

Boarding

8.2

Comfort

7.9

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
9,059 reviews
Delta
8.0
Very good
8,604 reviews

Food

7.3

Entertainment

7.9

Crew

8.6

Overall

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

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

Turkish Airlines
7.3
Good
3,907 reviews
Delta
8.0
Very good
8,604 reviews

Food

7.3

Entertainment

7.9

Crew

8.6

Overall

8.0

Boarding

8.2

Comfort

7.9

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 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.

  • 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.

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Alternative routes for Porto to Washington

See prices for flight routes from nearby airports that may be better suited for you.
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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 2,558,603 searches. Data last updated December 18, 2024.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$756Average$870FlexibilityNo cancel feeOn-time75%
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