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District of Columbia

$339+ 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 12/18. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — IAD
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
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 October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$460
(Booking.com)

One-way from

$339
(Cheapflightsfares)

Popular in

July

Cheapest in

September

Average price

$830

Good round-trip deal

$799 or less

Good one-way deal

$831 or less
Provider with most accurate pricing for Lisbon Humberto Delgado-Washington, D.C. (WAS) flight deals.
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Provider most trusted by Cheapflights users for Lisbon Humberto Delgado-Washington, D.C. (WAS) flights.
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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. 12% potential increase in price ($94 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 October 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 October 30, 2025.

This Rumbo deal was found by Cheapflights users on 10/29. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/215:35 pmOPO - IAD
1 stop30h 15mScandinavian Airlines
Thu 12/48:30 pmIAD - OPO
1 stop15h 25mScandinavian Airlines
Deal found 10/29$519
This lol.travel deal was found by Cheapflights users on 10/28. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/411:25 amLIS - IAD
Nonstop8h 50mTAP AIR PORTUGAL
Tue 12/95:30 pmIAD - LIS
Nonstop7h 05mTAP AIR PORTUGAL
Deal found 10/28$558
This AirNGo deal was found by Cheapflights users on 10/27. 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/205:00 amLIS - IAD
1 stop16h 05mKLM
Sun 11/236:05 pmIAD - LIS
1 stop11h 30mKLM
Deal found 10/27$560
This Rumbo deal was found by Cheapflights users on 10/28. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/119:00 amOPO - IAD
1 stop11h 15mTAP AIR PORTUGAL
Fri 12/2610:30 pmIAD - OPO
1 stop12h 25mTAP AIR PORTUGAL
Deal found 10/28$565
This Delta deal was found by Cheapflights users on 10/27. 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 11/205:00 amLIS - IAD
1 stop16h 05mDelta
Sun 11/237:49 pmIAD - LIS
2 stops16h 41mDelta
Deal found 10/27$568
This Delta deal was found by Cheapflights users on 10/27. 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 11/215:00 amLIS - IAD
1 stop16h 05mDelta
Thu 12/412:19 pmIAD - LIS
1 stop15h 36mDelta
Deal found 10/27$572
This KLM deal was found by Cheapflights users on 10/28. 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.
Sat 11/226:00 amOPO - IAD
1 stop15h 05mKLM
Sat 4/49:20 pmIAD - OPO
1 stop13h 10mKLM
Deal found 10/28$572
This Delta deal was found by Cheapflights users on 10/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/246:30 amOPO - IAD
1 stop14h 35mDelta
Mon 12/16:50 pmIAD - OPO
1 stop10h 40mDelta
Deal found 10/29$573
This Delta deal was found by Cheapflights users on 10/27. 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 11/215:00 amLIS - IAD
2 stops19h 08mDelta
Sun 12/77:59 pmIAD - LIS
2 stops16h 31mDelta
Deal found 10/27$574
This Delta deal was found by Cheapflights users on 10/27. 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 12/185:30 amLIS - IAD
1 stop16h 05mDelta
Thu 1/812:23 pmIAD - LIS
2 stops17h 57mDelta
Deal found 10/27$575
This KLM deal was found by Cheapflights users on 10/26. 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 11/85:00 amLIS - IAD
1 stop16h 05mMultiple Airlines
Sat 11/156:50 pmIAD - LIS
1 stop11h 30mMultiple Airlines
Deal found 10/26$576
This Delta deal was found by Cheapflights users on 10/27. 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.
Sun 11/95:00 amLIS - IAD
1 stop16h 05mDelta
Mon 11/247:49 pmIAD - LIS
2 stops16h 41mDelta
Deal found 10/27$577

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 October 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

Fri 1/16

2:20 pm-9:00 pm

1 stop11h 40m

Washington, D.C. Dulles Intl

Fri 1/30

10:30 pm-12:30 am

1 stop21h 00m

$480

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Fri 11/21

5:35 pm-6:50 pm

1 stop30h 15m

Washington, D.C. Dulles Intl

Thu 12/4

8:30 pm-4:55 pm

1 stop15h 25m

$519

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Fri 11/21

5:00 am-4:05 pm

1 stop16h 05m

Washington, D.C. Dulles Intl

Sun 12/7

7:59 pm-3:10 pm

2 stops14h 11m

$568

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Fri 11/21

5:00 am-4:05 pm

1 stop16h 05m

Washington, D.C. Dulles Intl

Thu 12/4

12:19 pm-8:55 am

1 stop15h 36m

$572

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Sat 11/22

6:00 am-4:05 pm

1 stop15h 05m

Washington, D.C. Dulles Intl

Sun 4/5

6:30 pm-3:30 pm

1 stop16h 00m

$572

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Mon 11/24

6:30 am-4:05 pm

1 stop14h 35m

Washington, D.C. Dulles Intl

Mon 12/1

6:50 pm-10:30 am

1 stop10h 40m

$572

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Mon 11/24

6:30 am-4:05 pm

1 stop14h 35m

Washington, D.C. Dulles Intl

Fri 4/3

9:20 pm-8:30 am

1 stop30h 10m

$573

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Mon 11/24

6:30 am-4:05 pm

1 stop14h 35m

Washington, D.C. Dulles Intl

Mon 12/1

6:50 pm-10:30 am

1 stop10h 40m

$573

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Tue 12/9

5:00 am-7:19 pm

2 stops19h 19m

Washington, D.C. Dulles Intl

Tue 1/13

6:50 pm-11:20 am

1 stop11h 30m

$574

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Sat 11/8

5:00 am-4:05 pm

1 stop16h 05m

Washington, D.C. Dulles Intl

Sat 11/15

6:50 pm-11:20 am

1 stop11h 30m

$576

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

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, February is the cheapest month in which you can book a flight from Portugal to District of Columbia (average of $485). Flying from Portugal to District of Columbia in July is currently the most expensive (average of $695). 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 October 30, 2025.

It’s optimal to fly from Portugal to District of Columbia in the evening. By choosing this option you can save up to 37% on the cost of your flight, compared to a flight in the morning.

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 October 30, 2025.
Read reviews from past customers who have flown United Airlines, TAP AIR PORTUGAL, and Lufthansa from Portugal to District of Columbia. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,999 reviews

Food

6.6

Crew

8.1

Comfort

7.3

Boarding

7.7

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
8,999 reviews
United Airlines
7.4
Good
8,999 reviews

Food

6.6

Crew

8.1

Comfort

7.3

Boarding

7.7

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
TAP AIR PORTUGAL
7.1
Good
2,037 reviews
United Airlines
7.4
Good
8,999 reviews

Food

6.6

Crew

8.1

Comfort

7.3

Boarding

7.7

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
Lufthansa
6.8
Okay
7,541 reviews
United Airlines
7.4
Good
8,999 reviews

Food

6.6

Crew

8.1

Comfort

7.3

Boarding

7.7

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
British Airways
6.7
Okay
7,487 reviews
United Airlines
7.4
Good
8,999 reviews

Food

6.6

Crew

8.1

Comfort

7.3

Boarding

7.7

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

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.

  • How long is the flight from Portugal to District of Columbia?

    There are many flights that can get you from Portugal to District of Columbia in 11h 40m. Fly via TAP AIR PORTUGAL, Scandinavian Airlines, or Delta to get the fastest option. There are 3537 mi between Portugal and District of Columbia. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 Iberia ($339), American Airlines ($353), and Aer Lingus ($456).

  • 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, February is the cheapest month in which you can book a flight from Portugal to District of Columbia (average of $485). Flying from Portugal to District of Columbia in July is currently the most expensive (average of $695). 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 3 airlines flying from Portugal to District of Columbia

Discover the top 3 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest$480Average$781FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$493Average$644FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$534Average$701FlexibilityNo cancel feeOn-time69%

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