Washington, D.C.

$282+ Cheap flights from Portugal to Washington, D.C. (WAS)

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 3/18. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — WAS
feb. 25 — mar. 41
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Cheap flight deals from Portugal to Washington, D.C.

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

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$486
(Expedia)

One-way from

$282
(Mytrip)

Popular in

July

Cheapest in

September

Average price

$581

Good round-trip deal

$604 or less

Good one-way deal

$568 or less
Provider with most accurate pricing for Lisbon Humberto Delgado-Washington, D.C. (WAS) flight deals.
Provider most trusted by Cheapflights users for Lisbon Humberto Delgado-Washington, D.C. (WAS) flights.
From Portugal to Washington, D.C. (WAS)
One-way flight from Portugal to Washington, D.C. (WAS)
Highest demand for flights based on searches. 16% potential increase in price ($136 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).
Average for round-trip flights in February 2025
Price to beat on a round-trip flight from Portugal to Washington, D.C. (WAS).
Price to beat on a one-way flight from Portugal to Washington, D.C. (WAS).

Find flight deals from Portugal to Washington, D.C.

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

This Finnair deal was found by Cheapflights users on 2/19. 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.
jue. 5/86:35 amLIS - IAD
1 stop13h 25mFinnair
lun. 5/1210:40 pmIAD - LIS
1 stop19h 30mFinnair
Deal found 2/19$478
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. 3/610:50 amLIS - IAD
1 stop13h 25mAer Lingus
sáb. 3/299:45 pmIAD - LIS
1 stop18h 50mAer Lingus
Deal found 2/20$486
This American Airlines deal was found by Cheapflights users on 2/19. 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.
jue. 5/18:25 amLIS - IAD
1 stop11h 35mAmerican Airlines
sáb. 5/1010:45 pmIAD - LIS
1 stop19h 25mAmerican Airlines
Deal found 2/19$487
This Iberia 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 4/138:15 amOPO - IAD
1 stop11h 45mMultiple Airlines
dom. 4/2710:40 pmIAD - OPO
1 stop16h 45mMultiple Airlines
Deal found 2/20$488
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.
jue. 5/17:20 amLIS - BWI
1 stop17h 15mFinnair
sáb. 5/109:20 pmBWI - LIS
1 stop20h 50mFinnair
Deal found 2/20$488
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.
mié. 3/57:05 amLIS - IAD
1 stop13h 30mMultiple Airlines
mar. 3/1810:55 pmIAD - LIS
1 stop14h 50mMultiple Airlines
Deal found 2/20$492
This Booking.com deal was found by Cheapflights users on 2/19. 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.
vie. 2/2810:45 amLIS - IAD
1 stop14h 00mBritish Airways
dom. 3/1610:55 pmIAD - LIS
1 stop18h 50mBritish Airways
Deal found 2/19$496
This Booking.com 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 3/1410:45 amLIS - BWI
1 stop13h 00mBritish Airways
dom. 3/309:20 pmBWI - LIS
1 stop14h 00mBritish Airways
Deal found 2/20$496
This Kissandfly.com 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 3/1411:05 amLIS - DCA
1 stop13h 10mBritish Airways
dom. 3/304:12 pmDCA - LIS
1 stop11h 53mBritish Airways
Deal found 2/20$497
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.
vie. 3/76:30 amLIS - DCA
2 stops14h 59mAmerican Airlines
dom. 3/234:12 pmDCA - LIS
1 stop12h 43mAmerican Airlines
Deal found 2/20$503
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.
mié. 3/56:30 amLIS - DCA
2 stops14h 56mMultiple Airlines
mar. 3/184:12 pmDCA - LIS
1 stop13h 03mMultiple Airlines
Deal found 2/20$505
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.
sáb. 4/128:35 pmOPO - IAD
1 stop23h 25mIberia
sáb. 4/194:35 pmIAD - OPO
1 stop10h 00mIberia
Deal found 2/20$512

Find flights from Portugal to Washington, D.C. within your budget

Customize your flight search to find flights from Portugal to Washington, D.C. 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, D.C.

Route

Depart

Return

Price

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

jue. 3/6

10:50 am-7:15 pm

1 stop13h 25m

Washington, D.C. Dulles Intl

sáb. 3/29

9:45 pm-9:35 pm

1 stop18h 50m

$486

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

jue. 4/17

8:25 am-3:00 pm

1 stop11h 35m

Washington, D.C. Dulles Intl

lun. 4/28

7:25 pm-12:45 pm

1 stop12h 20m

$487

LisbonBaltimore

LIS - BWI

LISBWI

Lisbon Humberto Delgado

jue. 5/1

7:20 am-7:35 pm

1 stop17h 15m

Baltimore/Washington

sáb. 5/10

9:20 pm-11:10 pm

1 stop20h 50m

$488

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

dom. 4/13

8:15 am-3:00 pm

1 stop11h 45m

Washington, D.C. Dulles Intl

dom. 4/27

10:40 pm-8:25 pm

1 stop16h 45m

$488

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

jue. 3/6

6:30 am-7:45 pm

2 stops18h 15m

Washington, D.C. Dulles Intl

sáb. 3/29

10:45 pm-11:10 pm

1 stop19h 25m

$495

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

vie. 3/7

10:45 am-7:45 pm

1 stop14h 00m

Washington, D.C. Dulles Intl

dom. 3/23

7:00 pm-12:10 pm

1 stop13h 10m

$496

LisbonBaltimore

LIS - BWI

LISBWI

Lisbon Humberto Delgado

vie. 3/14

10:45 am-7:45 pm

1 stop13h 00m

Baltimore/Washington

dom. 3/30

9:20 pm-4:20 pm

1 stop14h 00m

$496

LisbonWashington, D.C.

LIS - DCA

LISDCA

Lisbon Humberto Delgado

vie. 3/14

11:05 am-8:15 pm

1 stop13h 10m

Washington, D.C. Reagan-National

dom. 3/30

4:12 pm-9:05 am

1 stop11h 53m

$497

LisbonWashington, D.C.

LIS - DCA

LISDCA

Lisbon Humberto Delgado

vie. 3/7

6:30 am-4:29 pm

2 stops14h 59m

Washington, D.C. Reagan-National

dom. 3/23

4:12 pm-8:55 am

1 stop12h 43m

$503

LisbonWashington, D.C.

LIS - DCA

LISDCA

Lisbon Humberto Delgado

mié. 3/5

6:30 am-4:26 pm

2 stops14h 56m

Washington, D.C. Reagan-National

mar. 3/18

4:12 pm-9:15 am

1 stop13h 03m

$505

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 60 results
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Best time to book a flight from Portugal to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. 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, D.C.

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

What is the cheapest month to book a flight from Portugal to Washington, D.C.?

Currently, August is the cheapest month in which you can book a flight from Portugal to Washington, D.C. (average of $309). Flying from Portugal to Washington, D.C. in June is currently the most expensive (average of $389). 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 WAS?

Find hourly flight availability from Portugal to Washington, D.C.. 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 Washington, D.C., the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 18% versus a flight at noon.

Rainfall in Washington, D.C. by month

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

In terms of precipitation, rainfall in Washington, D.C. ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. when rainfall is around 2.6 in.

Temperature in Washington, D.C. by month

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

If weather is an important factor for your trip to Washington, D.C., 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. 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, D.C.. Reviews last updated febrero 20, 2025.
Get a feel of what it's like to fly with Emirates, Delta and KLM from Portugal to Washington, D.C. by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

8.0

Food

7.9

Entertainment

8.2

Overall

8.1

Crew

8.3

Boarding

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Jun 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.

Comfort

8.0

Food

7.9

Entertainment

8.2

Overall

8.1

Crew

8.3

Boarding

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Jun 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.

8.0
Very good

Comfort

8.0

Food

7.9

Entertainment

8.2

Overall

8.1

Crew

8.3

Boarding

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Jun 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.

Comfort

8.0

Food

7.9

Entertainment

8.2

Overall

8.1

Crew

8.3

Boarding

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Jun 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.

Comfort

8.0

Food

7.9

Entertainment

8.2

Overall

8.1

Crew

8.3

Boarding

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Jun 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.

Comfort

8.0

Food

7.9

Entertainment

8.2

Overall

8.1

Crew

8.3

Boarding

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Jun 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.

Related info for your journey

Find useful and relevant information for your journey from Portugal to Washington, D.C.. 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 Washington, D.C. one-way?

    To fly one-way, consider booking your trip with PLAY, which is currently one of the cheapest options available, starting at $356. Royal Air Maroc flights start at $358 while deals on Aer Lingus start at $439 one-way.

  • What are the most popular routes from Portugal to Washington, D.C.?

  • What are the most reliable airlines from Portugal to Washington, D.C.?

    No one likes to see their flight delayed. When booking a flight from Portugal to Washington, D.C. consider choosing Air Canada (91%), United Airlines (91%) or Lufthansa (91%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Portugal to Washington, D.C.?

    Looking for the cheapest flight from Portugal to Washington, D.C.? While on average our users pay $1,231, our data indicates the cheapest price to be $496. The most popular route (Lisbon Humberto Delgado - Washington, D.C. Dulles Intl), is priced around $478.

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

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

  • How can I find direct flights from Portugal to Washington, D.C.?

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

  • Can I find deals for business class flights from Portugal to Washington, D.C.?

    Yes. Cheapflights offers flight deals from Portugal to Washington, D.C. 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 Washington, D.C.?

    Currently, August is the cheapest month in which you can book a flight from Portugal to Washington, D.C. (average of $309). Flying from Portugal to Washington, D.C. in June is currently the most expensive (average of $389). 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

Traveling to a place near Portugal?

Book flights to Portugal if you plan to visit one of these locations
Arlington
Alexandria
Fairfax
Springfield
Rockville
Tysons
Gaithersburg
Silver Spring
Fredericksburg
Linthicum Heights
Laurel
Falls Church
Woodbridge
Easton
Herndon
Bowie
Reston
National Harbor
Oxon Hill
Gettysburg

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Portugal to Washington, D.C.

See prices for flight routes from nearby airports that may be better suited for you.

Top 3 airlines flying from Portugal to Washington, D.C.

Discover the top 3 airlines that operate flights from Portugal to Washington, D.C.. 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
TAP AIR PORTUGALCheapest$480Average$777FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$536Average$779FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$543Average$726FlexibilityNo cancel feeOn-time69%
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