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District of Columbia

$367+ 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 3/29. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — IAD
Jan 15 — Jan 221
Thu 1/15
Thu 1/22
1 adult, Economy
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Cheap 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 December 16, 2025.

This Orbitz deal was found by Cheapflights users on 12/14. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/256:30 amLIS - IAD
1 stop15h 00mMultiple Airlines
Sat 1/106:20 pmIAD - LIS
1 stop18h 35mMultiple Airlines
Deal found 12/14$611
This British Airways deal was found by Cheapflights users on 12/16. 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.
Wed 12/248:45 pmLIS - IAD
1 stop24h 45mMultiple Airlines
Tue 1/139:45 pmIAD - LIS
1 stop14h 55mMultiple Airlines
Deal found 12/16$623
This United Airlines deal was found by Cheapflights users on 12/14. 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.
Tue 12/2311:55 amLIS - IAD
Nonstop8h 35mUnited Airlines
Sat 1/310:05 pmIAD - LIS
Nonstop7h 10mUnited Airlines
Deal found 12/14$625
This British Airways deal was found by Cheapflights users on 12/14. 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.
Thu 12/258:55 amLIS - DCA
1 stop12h 40mBritish Airways
Sat 1/104:39 pmDCA - LIS
1 stop11h 26mBritish Airways
Deal found 12/14$631
This United Airlines deal was found by Cheapflights users on 12/14. 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.
Thu 12/2511:55 amLIS - IAD
Nonstop8h 35mUnited Airlines
Sat 1/1010:06 pmIAD - LIS
1 stop30h 14mUnited Airlines
Deal found 12/14$632
This British Airways deal was found by Cheapflights users on 12/16. 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.
Wed 12/2411:05 amLIS - DCA
1 stop10h 30mBritish Airways
Tue 1/131:44 pmDCA - LIS
1 stop14h 21mBritish Airways
Deal found 12/16$632
This United Airlines deal was found by Cheapflights users on 12/16. 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.
Wed 12/2411:00 amLIS - IAD
2 stops29h 47mUnited Airlines
Tue 1/135:38 pmIAD - LIS
1 stop9h 32mUnited Airlines
Deal found 12/16$633
This United Airlines deal was found by Cheapflights users on 12/14. 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.
Thu 12/2510:55 amLIS - DCA
2 stops28h 04mUnited Airlines
Sat 1/108:40 pmDCA - LIS
1 stop31h 40mUnited Airlines
Deal found 12/14$641
This American Airlines deal was found by Cheapflights users on 12/14. 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 12/258:55 amLIS - DCA
2 stops14h 57mAmerican Airlines
Sat 1/103:54 pmDCA - LIS
2 stops12h 11mAmerican Airlines
Deal found 12/14$644
This United Airlines deal was found by Cheapflights users on 12/14. 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 12/275:00 amLIS - IAD
1 stop14h 35mUnited Airlines
Tue 1/610:28 pmIAD - LIS
2 stops29h 52mUnited Airlines
Deal found 12/14$656
This British Airways deal was found by Cheapflights users on 12/15. 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.
Thu 12/188:55 amLIS - DCA
1 stop16h 18mBritish Airways
Thu 1/84:43 pmDCA - LIS
1 stop11h 22mBritish Airways
Deal found 12/15$666
This American Airlines deal was found by Cheapflights users on 12/15. 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 12/188:55 amLIS - DCA
2 stops14h 52mAmerican Airlines
Thu 1/83:30 pmDCA - LIS
2 stops12h 35mAmerican Airlines
Deal found 12/15$679

Find 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 December 16, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$506
(oojo)

One-way from

$367
(Expedia)

Popular in

July

Cheapest in

September

Average price

$637

Good round-trip deal

$598 or less

Good one-way deal

$602 or less
Provider with most accurate pricing for Lisbon Humberto Delgado-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lisbon Humberto Delgado-Washington, D.C. (WAS) flights.
Search Deals
From Portugal to District of Columbia
Search Deals
One-way flight from Portugal to District of Columbia
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($85 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Portugal to District of Columbia.
Search Deals
Price to beat on a one-way flight from Portugal to District of Columbia.
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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 December 16, 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 1/30

2:20 pm-9:00 pm

1 stop11h 40m

Washington, D.C. Dulles Intl

Fri 2/6

10:30 pm-5:00 pm

1 stop13h 30m

$506

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Thu 1/15

7:00 am-3:15 pm

1 stop13h 15m

Washington, D.C. Dulles Intl

Wed 1/28

10:30 pm-5:00 pm

1 stop13h 30m

$508

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Wed 1/28

6:45 am-6:30 pm

2 stops16h 45m

Washington, D.C. Dulles Intl

Wed 2/4

7:40 pm-2:55 pm

2 stops14h 15m

$529

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Thu 1/15

6:00 am-3:46 pm

2 stops38h 46m

Washington, D.C. Dulles Intl

Wed 1/28

9:45 am-11:15 am

2 stops20h 30m

$595

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Thu 1/15

6:00 am-3:46 pm

2 stops38h 46m

Washington, D.C. Dulles Intl

Wed 1/28

9:45 am-11:15 am

2 stops20h 30m

$596

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Thu 3/5

6:00 am-6:05 pm

2 stops41h 05m

Washington, D.C. Reagan-National

Mon 3/9

8:10 pm-9:30 am

1 stop9h 20m

$597

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Tue 3/17

5:00 am-9:15 pm

1 stop20h 15m

Washington, D.C. Dulles Intl

Tue 4/7

10:30 pm-10:30 am

Nonstop7h 00m

$598

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Thu 1/15

6:00 am-8:55 am

2 stops31h 55m

Washington, D.C. Reagan-National

Wed 1/28

4:15 pm-1:15 pm

2 stops16h 00m

$598

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Mon 1/12

11:15 am-4:05 pm

1 stop33h 50m

Washington, D.C. Dulles Intl

Mon 1/19

6:50 pm-10:30 am

1 stop10h 40m

$599

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Thu 1/15

5:00 am-8:15 pm

1 stop20h 15m

Washington, D.C. Dulles Intl

Wed 1/21

5:38 pm-8:10 am

1 stop9h 32m

$599

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

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, December is the cheapest month in which you can book a flight from Portugal to District of Columbia (average of $492). 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 December 16, 2025.

It’s optimal to fly from Portugal to District of Columbia in the evening. By choosing this option you can save up to 39% on the cost of your flight, compared to a flight in the morning.

Weekly flight availability from Portugal to District of Columbia

Explore weekly flight availability from Portugal to District of Columbia. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated December 16, 2025.

The most flights from PT0 to USDC are scheduled on a Monday (5 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (3 on average).

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 December 16, 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
9,094 reviews

Food

6.6

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Overall

7.4

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

AMS - EWR

It was good! The first 3/4 of the trip was uncomfortably cold. Only one option for lunch that I didn’t enjoy (vegetarian).
United Airlines
7.4
Good
9,094 reviews
United Airlines
7.4
Good
9,094 reviews

Food

6.6

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Overall

7.4

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

AMS - EWR

It was good! The first 3/4 of the trip was uncomfortably cold. Only one option for lunch that I didn’t enjoy (vegetarian).
TAP AIR PORTUGAL
7.2
Good
2,091 reviews
United Airlines
7.4
Good
9,094 reviews

Food

6.6

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Overall

7.4

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

AMS - EWR

It was good! The first 3/4 of the trip was uncomfortably cold. Only one option for lunch that I didn’t enjoy (vegetarian).
Lufthansa
6.8
Okay
7,632 reviews
United Airlines
7.4
Good
9,094 reviews

Food

6.6

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Overall

7.4

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

AMS - EWR

It was good! The first 3/4 of the trip was uncomfortably cold. Only one option for lunch that I didn’t enjoy (vegetarian).
British Airways
6.7
Okay
7,582 reviews
United Airlines
7.4
Good
9,094 reviews

Food

6.6

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Overall

7.4

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

AMS - EWR

It was good! The first 3/4 of the trip was uncomfortably cold. Only one option for lunch that I didn’t enjoy (vegetarian).

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, Air Canada, or United Airlines 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 ($331), TAP AIR PORTUGAL ($365), and British Airways ($367).

  • 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, December is the cheapest month in which you can book a flight from Portugal to District of Columbia (average of $492). 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 December 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest$492Average$763FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$493Average$644FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$497Average$726FlexibilityNo cancel feeOn-time69%

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