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District of Columbia

$337+ Cheap flights from Portugal to District of Columbia

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 10/14. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — BWI
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
1 adult, Economy
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Cheap flight deals from Portugal to District of Columbia

Keep the following information in mind while searching for Portugal to District of Columbia flight deals. Data was last updated July 30, 2025.

Round-trip from

$482
(lol.travel)

One-way from

$337
(Mytrip)

Popular in

August

Cheapest in

September

Average price

$883

Good round-trip deal

$658 or less

Good one-way deal

$650 or less
From Portugal to District of Columbia
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One-way flight from Portugal to District of Columbia
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Highest demand for flights based on searches. 10% potential increase in price ($84 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Portugal to District of Columbia.
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Price to beat on a one-way flight from Portugal to District of Columbia.
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Find flight deals from Portugal to District of Columbia

Cheapest flights from Portugal to District of Columbia
Explore the most affordable flight options available from Portugal to District of Columbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

This lol.travel deal was found by Cheapflights users on 7/29. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/189:15 pmOPO - IAD
1 stop23h 05mTAP AIR PORTUGAL
Wed 10/110:20 pmIAD - OPO
1 stop13h 45mTAP AIR PORTUGAL
Deal found 7/29$482
This Delta deal was found by Cheapflights users on 7/30. 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.
Wed 8/275:00 amLIS - IAD
1 stop15h 35mDelta
Wed 9/39:20 pmIAD - LIS
1 stop15h 35mDelta
Deal found 7/30$539
This Delta deal was found by Cheapflights users on 7/30. 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.
Sat 9/1311:40 amLIS - DCA
2 stops17h 01mDelta
Sat 9/205:00 pmDCA - LIS
2 stops16h 50mDelta
Deal found 7/30$544
This KLM deal was found by Cheapflights users on 7/28. 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.
Fri 8/297:30 pmLIS - IAD
1 stop25h 05mMultiple Airlines
Wed 11/126:50 pmIAD - LIS
1 stop15h 20mMultiple Airlines
Deal found 7/28$548
This KLM deal was found by Cheapflights users on 7/29. 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.
Fri 8/297:30 pmLIS - IAD
1 stop25h 05mKLM
Sat 9/135:25 pmIAD - LIS
1 stop12h 30mKLM
Deal found 7/29$551
This lol.travel deal was found by Cheapflights users on 7/30. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/15:05 amLIS - IAD
1 stop13h 25mUnited Airlines
Mon 9/1510:20 pmIAD - LIS
1 stop18h 30mUnited Airlines
Deal found 7/30$553
This Delta deal was found by Cheapflights users on 7/30. 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.
Wed 10/86:15 amOPO - IAD
1 stop14h 20mDelta
Tue 10/217:59 pmIAD - OPO
2 stops14h 31mDelta
Deal found 7/30$553
This American Airlines deal was found by Cheapflights users on 7/30. 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.
Thu 9/118:25 amLIS - IAD
1 stop11h 35mAmerican Airlines
Sat 9/2710:45 pmIAD - LIS
1 stop14h 20mAmerican Airlines
Deal found 7/30$559
This Delta deal was found by Cheapflights users on 7/30. 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.
Thu 9/46:30 amOPO - DCA
2 stops16h 44mDelta
Sat 9/205:15 pmDCA - OPO
2 stops17h 15mDelta
Deal found 7/30$559
This KLM deal was found by Cheapflights users on 7/29. 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 9/188:20 pmOPO - IAD
1 stop24h 15mMultiple Airlines
Wed 10/19:20 pmIAD - OPO
1 stop30h 05mMultiple Airlines
Deal found 7/29$560
This Virgin Atlantic deal was found by Cheapflights users on 7/30. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1112:45 pmLIS - DCA
1 stop11h 59mVirgin Atlantic
Sat 9/2712:20 pmDCA - LIS
2 stops17h 25mVirgin Atlantic
Deal found 7/30$562
This American Airlines deal was found by Cheapflights users on 7/29. 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.
Thu 9/188:15 amOPO - IAD
1 stop11h 45mAmerican Airlines
Wed 10/14:35 pmIAD - OPO
1 stop10h 00mAmerican Airlines
Deal found 7/29$564

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portugal to District of Columbia 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 July 30, 2025.
Use the filters below to find and compare flights from Portugal to District of Columbia that are best for you.

Fly from

Portugal

Fly to

District of Columbia

Route

Depart

Return

Price

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Thu 9/18

9:15 pm-3:20 pm

1 stop23h 05m

Washington, D.C. Dulles Intl

Wed 10/1

10:20 pm-5:05 pm

1 stop13h 45m

$482

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Wed 8/27

5:00 am-3:35 pm

1 stop15h 35m

Washington, D.C. Dulles Intl

Wed 9/3

9:20 pm-5:55 pm

1 stop15h 35m

$539

LisbonWashington, D.C.

LIS - DCA

LISDCA

Lisbon Humberto Delgado

Sat 9/13

11:40 am-11:41 pm

2 stops17h 01m

Washington, D.C. Reagan-National

Sat 9/20

5:00 pm-2:50 pm

2 stops16h 50m

$544

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Thu 9/11

7:30 pm-3:35 pm

1 stop25h 05m

Washington, D.C. Dulles Intl

Sat 9/27

9:20 pm-5:55 pm

1 stop15h 35m

$547

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Fri 8/29

7:30 pm-3:35 pm

1 stop25h 05m

Washington, D.C. Dulles Intl

Sat 9/13

5:25 pm-10:55 am

1 stop12h 30m

$551

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Mon 9/1

5:05 am-1:30 pm

1 stop13h 25m

Washington, D.C. Dulles Intl

Mon 9/15

10:20 pm-9:50 pm

1 stop18h 30m

$553

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Wed 10/8

6:15 am-3:35 pm

1 stop14h 20m

Washington, D.C. Dulles Intl

Tue 10/21

7:59 pm-3:30 pm

2 stops14h 31m

$553

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Thu 9/11

8:25 am-3:00 pm

1 stop11h 35m

Washington, D.C. Dulles Intl

Sat 9/27

10:45 pm-6:05 pm

1 stop14h 20m

$559

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Thu 9/4

6:30 am-6:14 pm

2 stops16h 44m

Washington, D.C. Reagan-National

Sat 9/20

5:15 pm-3:30 pm

2 stops17h 15m

$559

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Thu 9/18

8:20 pm-3:35 pm

1 stop24h 15m

Washington, D.C. Dulles Intl

Wed 10/1

9:20 pm-8:25 am

1 stop30h 05m

$560

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 60 results
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Best time to book a flight from Portugal to District of Columbia

Have a flexible travel schedule? Discover the best time to fly to District of Columbia 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.

Cheapflights Insights

Everything you need to know about your flight from Portugal to District of Columbia

What is the cheapest month to book a flight from Portugal to District of Columbia?

Currently, August is the cheapest month in which you can book a flight from Portugal to District of Columbia (average of $241). Flying from Portugal to District of Columbia in March is currently the most expensive (average of $290). 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 DC?

Find hourly flight availability from Portugal to District of Columbia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 30, 2025.

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

Reviews of airlines servicing District of Columbia

Get insights into the airlines that provide service to District of Columbia. 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 District of Columbia. Reviews last updated July 30, 2025.
Read reviews from past customers who have flown Delta, KLM, and Finnair from Portugal to District of Columbia. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

Food

7.3

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Delta
8.0
Very good
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

Food

7.3

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
KLM
7.8
Good
1,383 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

Food

7.3

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Finnair
7.6
Good
1,316 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

Food

7.3

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Air France
7.5
Good
1,465 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

Food

7.3

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
SWISS
7.5
Good
1,686 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

Food

7.3

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.

Related info for your journey

Find useful and relevant information for your journey from Portugal to District of Columbia. 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 District of Columbia one-way?

    The cheapest airlines for a one-way flight from Portugal to District of Columbia are Royal Air Maroc ($394), TAP AIR PORTUGAL ($426), and Aer Lingus ($514).

  • Can I find deals for flights from Portugal to District of Columbia that include hotel bookings?

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

  • How can I find direct flights from Portugal to District of Columbia?

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

  • Can I find deals for business class flights from Portugal to District of Columbia?

    Yes. Cheapflights offers flight deals from Portugal to District of Columbia 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 District of Columbia?

    Currently, August is the cheapest month in which you can book a flight from Portugal to District of Columbia (average of $241). Flying from Portugal to District of Columbia in March is currently the most expensive (average of $290). 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 District of Columbia

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Portugal to District of Columbia

Discover the top 4 airlines that operate flights from Portugal to District of Columbia. 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 July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest$492Average$769FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$493Average$644FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$534Average$634FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$536Average$657FlexibilityNo cancel feeOn-time76%

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