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$270+ Cheap flights from Portugal to Washington

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 4/29. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — SEA
feb. 25 — mar. 41
mar. 2/25
mar. 3/4
1 adult, Economy
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Cheap flight deals from Portugal to Washington

Keep the following information in mind while searching for Portugal to Washington flight deals. Data was last updated febrero 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$661
(Travelocity)

One-way from

$270
(Kiwi.com)

Popular in

June

Cheapest in

December

Average price

$866
Provider with most accurate pricing for Lisbon Humberto Delgado-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Lisbon Humberto Delgado-Seattle/Tacoma Intl flights.
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From Portugal to Washington
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One-way flight from Portugal to Washington
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Highest demand for flights based on searches. 8% potential increase in price ($86 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find flight deals from Portugal to Washington

Cheapest flights from Portugal to Washington
Explore the most affordable flight options available from Portugal to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on febrero 20, 2025.

This FlightHub deal was found by Cheapflights users on 2/20. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/56:25 pmLIS - SEA
1 stop27h 25mMultiple Airlines
vie. 9/194:20 pmSEA - LIS
1 stop20h 20mMultiple Airlines
Deal found 2/20$658
This Travelocity deal was found by Cheapflights users on 2/20. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 4/1610:15 pmLIS - SEA
1 stop26h 44mAer Lingus
lun. 5/266:45 pmSEA - LIS
1 stop18h 50mAer Lingus
Deal found 2/20$661
This Finnair deal was found by Cheapflights users on 2/20. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 3/116:30 amLIS - SEA
2 stops23h 56mFinnair
dom. 3/308:20 pmSEA - LIS
1 stop18h 40mFinnair
Deal found 2/20$713
This British Airways deal was found by Cheapflights users on 2/20. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 3/610:55 amLIS - SEA
1 stop19h 02mBritish Airways
dom. 3/97:50 pmSEA - LIS
1 stop14h 55mBritish Airways
Deal found 2/20$717
This American Airlines deal was found by Cheapflights users on 2/20. 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.
dom. 3/167:05 amLIS - PDX
1 stop17h 30mAmerican Airlines
dom. 3/307:25 pmPDX - LIS
1 stop19h 35mAmerican Airlines
Deal found 2/20$720
This American Airlines deal was found by Cheapflights users on 2/20. 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.
mié. 4/1611:05 amLIS - SEA
2 stops17h 32mAmerican Airlines
lun. 5/261:30 pmSEA - LIS
1 stop20h 25mAmerican Airlines
Deal found 2/20$725
This Expedia deal was found by Cheapflights users on 2/20. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 5/86:35 amLIS - SEA
2 stops24h 34mIberia
mar. 5/131:30 pmSEA - LIS
2 stops25h 55mIberia
Deal found 2/20$731
This British Airways deal was found by Cheapflights users on 2/20. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 3/167:05 amLIS - PDX
1 stop17h 30mBritish Airways
dom. 3/302:12 pmPDX - LIS
2 stops24h 48mBritish Airways
Deal found 2/20$753
This Delta deal was found by Cheapflights users on 2/20. 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.
lun. 3/175:00 amLIS - SEA
1 stop14h 40mDelta
mié. 4/21:50 pmSEA - LIS
2 stops20h 05mDelta
Deal found 2/20$784
This Delta deal was found by Cheapflights users on 2/20. 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.
mar. 3/45:00 amLIS - PDX
2 stops20h 32mDelta
mar. 3/116:35 amPDX - LIS
2 stops21h 45mDelta
Deal found 2/20$789
This Air France deal was found by Cheapflights users on 2/20. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 3/16:30 pmLIS - SEA
1 stop25h 21mAir France
dom. 3/91:35 pmSEA - LIS
1 stop18h 35mAir France
Deal found 2/20$790
This United Airlines deal was found by Cheapflights users on 2/20. 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.
jue. 3/66:00 amOPO - SEA
2 stops47h 30mUnited Airlines
dom. 3/95:15 amSEA - OPO
2 stops26h 55mUnited Airlines
Deal found 2/20$791

Find flights from Portugal to Washington within your budget

Customize your flight search to find flights from Portugal 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 febrero 20, 2025.

Fly from

Portugal

Fly to

Washington

Route

Depart

Return

Price

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

mié. 4/16

10:15 pm-4:59 pm

1 stop26h 44m

Seattle/Tacoma Intl

lun. 5/26

6:45 pm-9:35 pm

1 stop18h 50m

$661

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

mar. 3/11

6:30 am-11:26 pm

2 stops23h 56m

Seattle/Tacoma Intl

dom. 3/30

8:20 pm-11:00 pm

1 stop18h 40m

$713

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

jue. 3/6

6:30 am-11:10 pm

2 stops24h 40m

Seattle/Tacoma Intl

dom. 3/9

7:50 pm-5:45 pm

1 stop14h 55m

$716

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

jue. 3/6

10:55 am-9:57 pm

1 stop19h 02m

Seattle/Tacoma Intl

dom. 3/9

7:50 pm-5:45 pm

1 stop14h 55m

$717

LisbonPortland

LIS - PDX

LISPDX

Lisbon Humberto Delgado

dom. 3/16

7:05 am-5:35 pm

1 stop17h 30m

Portland

dom. 3/30

7:25 pm-11:00 pm

1 stop19h 35m

$720

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

mié. 4/16

11:05 am-8:37 pm

2 stops17h 32m

Seattle/Tacoma Intl

lun. 5/26

1:30 pm-5:55 pm

1 stop20h 25m

$725

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

jue. 5/8

6:35 am-11:09 pm

2 stops24h 34m

Seattle/Tacoma Intl

mar. 5/13

1:30 pm-11:25 pm

2 stops25h 55m

$731

LisbonPortland

LIS - PDX

LISPDX

Lisbon Humberto Delgado

dom. 3/16

7:05 am-5:35 pm

1 stop17h 30m

Portland

dom. 3/30

2:12 pm-11:00 pm

2 stops24h 48m

$753

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

lun. 3/17

5:00 am-12:40 pm

1 stop14h 40m

Seattle/Tacoma Intl

mié. 4/2

1:50 pm-5:55 pm

2 stops20h 05m

$784

LisbonPortland

LIS - PDX

LISPDX

Lisbon Humberto Delgado

mar. 3/4

5:00 am-11:25 am

1 stop14h 25m

Portland

mar. 3/11

2:25 pm-2:35 pm

1 stop17h 10m

$789

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 45 results
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Best time to book a flight from Portugal to Washington

Have a flexible travel schedule? Discover the best time to fly to Washington from Portugal 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 Portugal to Washington

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

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

Currently, January is the cheapest month in which you can book a flight from Portugal to State of Washington (average of $238). Flying from Portugal 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.

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

Find hourly flight availability from Portugal to Washington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated febrero 20, 2025.

When flying from Portugal to State of Washington, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 febrero 20, 2025.
See what other customers who have flown with Delta, KLM and Finnair from Portugal to Washington have to say. 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
8,220 reviews

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

8.0

Overall

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

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

Delta
8.0
Very good
8,220 reviews
Delta
8.0
Very good
8,220 reviews

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

8.0

Overall

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

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

KLM
7.8
Good
1,333 reviews
Delta
8.0
Very good
8,220 reviews

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

8.0

Overall

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

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

Finnair
7.6
Good
1,273 reviews
Delta
8.0
Very good
8,220 reviews

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

8.0

Overall

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

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

SWISS
7.5
Good
1,568 reviews
Delta
8.0
Very good
8,220 reviews

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

8.0

Overall

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

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

Virgin Atlantic
7.5
Good
654 reviews
Delta
8.0
Very good
8,220 reviews

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

8.0

Overall

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

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 Portugal to Washington. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    The cheapest airline one-way is Turkish Airlines, with whom users have recently found tickets for as low as $616. However, be on the lookout for offers from Finnair and Aer Lingus, as they are both options that can get you from Portugal to State of Washington for a low price.

  • Can I find deals for flights from Portugal to Washington that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Portugal 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 Portugal to State of Washington?

    Currently, January is the cheapest month in which you can book a flight from Portugal to State of Washington (average of $238). Flying from Portugal 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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Alternative routes for Portugal to Washington

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Portugal to Washington

Discover the top 6 airlines that operate flights from Portugal 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 febrero 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$738Average$950FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$745Average$967FlexibilityNo cancel feeOn-time70%
DeltaCheapest$756Average$859FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$756Average$921FlexibilityNo cancel feeOn-time75%
Air FranceCheapest$770Average$854FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$792Average$873FlexibilityNo cancel feeOn-time71%
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