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Portugal

$248+ Cheap flights from District of Columbia to Portugal

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 3/16. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — LIS
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap flight deals from District of Columbia to Portugal

Cheapest flights from District of Columbia to Portugal
Explore the most affordable flight options available from District of Columbia to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This oojo deal was found by Cheapflights users on 1/27. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1210:35 pm
IAD
-
OPO
1 stop11h 55m
TAP AIR PORTUGAL
Wed 4/299:00 am
OPO
-
IAD
1 stop16h 35m
TAP AIR PORTUGAL
Deal found 1/27$372
This Mytrip deal was found by Cheapflights users on 1/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/245:30 pm
IAD
-
OPO
1 stop11h 40m
TAP AIR PORTUGAL
Tue 3/36:55 am
OPO
-
IAD
1 stop12h 40m
TAP AIR PORTUGAL
Deal found 1/27$379
This oojo deal was found by Cheapflights users on 1/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/1810:30 pm
IAD
-
OPO
1 stop9h 35m
TAP AIR PORTUGAL
Tue 2/2410:15 pm
OPO
-
IAD
1 stop27h 45m
TAP AIR PORTUGAL
Deal found 1/28$380
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/811:30 pm
IAD
-
OPO
1 stop11h 50m
TAP AIR PORTUGAL
Wed 3/2510:00 am
OPO
-
IAD
1 stop16h 00m
TAP AIR PORTUGAL
Deal found 1/27$398
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/166:30 pm
IAD
-
OPO
1 stop11h 30m
TAP AIR PORTUGAL
Thu 3/267:00 am
OPO
-
IAD
1 stop13h 15m
TAP AIR PORTUGAL
Deal found 1/27$399
This Kiwi.com deal was found by Cheapflights users on 1/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/166:30 pm
IAD
-
OPO
1 stop11h 30m
TAP AIR PORTUGAL
Wed 3/252:00 pm
OPO
-
IAD
1 stop12h 00m
TAP AIR PORTUGAL
Deal found 1/28$404
This oojo deal was found by Cheapflights users on 1/26. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/175:30 pm
IAD
-
OPO
1 stop14h 40m
TAP AIR PORTUGAL
Mon 2/234:10 pm
OPO
-
IAD
1 stop27h 25m
TAP AIR PORTUGAL
Deal found 1/26$425
This oojo deal was found by Cheapflights users on 1/27. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/75:05 pm
IAD
-
OPO
1 stop10h 55m
TAP AIR PORTUGAL
Wed 4/1510:25 pm
OPO
-
IAD
1 stop21h 40m
TAP AIR PORTUGAL
Deal found 1/27$456
This oojo deal was found by Cheapflights users on 1/27. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/2810:30 pm
IAD
-
OPO
1 stop13h 30m
TAP AIR PORTUGAL
Wed 2/410:00 am
OPO
-
IAD
1 stop16h 00m
TAP AIR PORTUGAL
Deal found 1/27$461
This oojo deal was found by Cheapflights users on 1/27. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/175:30 pm
IAD
-
OPO
1 stop11h 40m
TAP AIR PORTUGAL
Tue 2/2410:15 pm
OPO
-
IAD
1 stop27h 45m
TAP AIR PORTUGAL
Deal found 1/27$468
This oojo deal was found by Cheapflights users on 1/26. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/25:30 pm
IAD
-
PDL
1 stop21h 05m
TAP AIR PORTUGAL
Mon 3/97:25 pm
PDL
-
IAD
1 stop23h 10m
TAP AIR PORTUGAL
Deal found 1/26$471
This oojo deal was found by Cheapflights users on 1/26. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/2510:30 pm
IAD
-
FNC
1 stop21h 30m
TAP AIR PORTUGAL
Wed 3/46:10 pm
FNC
-
IAD
1 stop26h 05m
TAP AIR PORTUGAL
Deal found 1/26$472

Find flight deals from District of Columbia to Portugal

Keep the following information in mind while searching for District of Columbia to Portugal flight deals. Data was last updated January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$372
(oojo)

One-way from

$248
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$730

Good round-trip deal

$541 or less

Good one-way deal

$390 or less
Provider with most accurate pricing for Washington, D.C. (WAS)-Lisbon Humberto Delgado flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Lisbon Humberto Delgado flights.
Search Deals
From District of Columbia to Portugal
Search Deals
One-way flight from District of Columbia to Portugal
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($164 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from District of Columbia to Portugal.
Search Deals
Price to beat on a one-way flight from District of Columbia to Portugal.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from District of Columbia to Portugal 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 January 29, 2026.
Use the filters below to find and compare flights from District of Columbia to Portugal that are best for you.

Fly from

District of Columbia

Fly to

Portugal

Route

Depart

Return

Price

Washington, D.C.Funchal

IAD - FNC

IADFNC

Washington, D.C. Dulles Intl

Wed 2/25

10:30 pm-1:00 am

1 stop21h 30m

Funchal Madeira

Wed 3/4

6:10 pm-3:15 pm

1 stop26h 05m

$472

Washington, D.C.Funchal

IAD - FNC

IADFNC

Washington, D.C. Dulles Intl

Thu 4/23

10:35 pm-6:30 pm

1 stop14h 55m

Funchal Madeira

Tue 4/28

5:50 am-3:05 pm

1 stop14h 15m

$472

Washington, D.C.Ponta Delgada

IAD - PDL

IADPDL

Washington, D.C. Dulles Intl

Thu 4/23

10:35 pm-6:50 pm

1 stop16h 15m

Ponta Delgada Nordela

Thu 4/30

7:40 pm-3:05 pm

1 stop23h 25m

$472

Washington, D.C.Ponta Delgada

IAD - PDL

IADPDL

Washington, D.C. Dulles Intl

Mon 3/9

6:30 pm-6:35 pm

1 stop21h 05m

Ponta Delgada Nordela

Mon 3/16

7:50 pm-3:35 pm

1 stop22h 45m

$472

Washington, D.C.Funchal

IAD - FNC

IADFNC

Washington, D.C. Dulles Intl

Mon 3/2

5:30 pm-5:15 pm

1 stop18h 45m

Funchal Madeira

Mon 3/9

4:10 am-4:15 pm

1 stop16h 05m

$473

Washington, D.C.Funchal

IAD - FNC

IADFNC

Washington, D.C. Dulles Intl

Mon 4/27

10:35 pm-9:00 pm

1 stop17h 25m

Funchal Madeira

Wed 5/6

5:50 am-3:05 pm

1 stop14h 15m

$473

Washington, D.C.Faro

IAD - FAO

IADFAO

Washington, D.C. Dulles Intl

Tue 3/17

12:14 pm-9:30 am

2 stops17h 16m

Faro

Wed 3/25

10:20 am-5:05 pm

1 stop34h 45m

$539

Washington, D.C.Faro

DCA - FAO

DCAFAO

Washington, D.C. Reagan-National

Tue 3/10

12:29 pm-9:30 am

2 stops17h 01m

Faro

Tue 3/17

7:45 pm-5:49 pm

2 stops26h 04m

$548

Washington, D.C.Lisbon

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

Thu 4/16

7:15 pm-10:05 am

1 stop33h 50m

Lisbon Humberto Delgado

Thu 4/30

11:05 am-8:20 pm

1 stop14h 15m

$549

Washington, D.C.Faro

DCA - FAO

DCAFAO

Washington, D.C. Reagan-National

Tue 3/17

12:29 pm-9:30 am

2 stops17h 01m

Faro

Wed 3/25

6:55 pm-5:49 pm

2 stops26h 54m

$549

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

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

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

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

Currently, July is the cheapest month in which you can book a flight from District of Columbia to Portugal (average of $345). Flying from District of Columbia to Portugal in September is currently the most expensive (average of $529). 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 DC to PT?

Find hourly flight availability from District of Columbia to Portugal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 29, 2026.

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

Related info for your journey

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

    Airlines like TAP AIR PORTUGAL, KLM, and British Airways fly from District of Columbia to Portugal in about 17h 16m. The time it takes to get you to your destination can typically vary by up to 16h 34m. There are 3688 mi between District of Columbia and Portugal. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from District of Columbia to Portugal one-way?

    One-way options have recently been found by users for as low as $222 on TAP AIR PORTUGAL. Other airlines that offer cheap prices include Delta from $256 and United Airlines from $260 one-way.

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

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

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

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

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

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

    Currently, July is the cheapest month in which you can book a flight from District of Columbia to Portugal (average of $345). Flying from District of Columbia to Portugal in September is currently the most expensive (average of $529). 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 District of Columbia to Portugal

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from District of Columbia to Portugal

Discover the top 10 airlines that operate flights from District of Columbia to Portugal. 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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapest$344Average$414FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$439Average$881FlexibilityNo cancel feeOn-timeN/A
TAP AIR PORTUGALCheapest$443Average$908FlexibilityNo cancel feeOn-timeN/A
SWISSCheapest$444Average$681FlexibilityNo cancel feeOn-time79%
KLMCheapest$477Average$731FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$480Average$878FlexibilityNo cancel feeOn-time70%
Scandinavian AirlinesCheapest$481Average$599FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$494Average$1,069FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$508Average$1,022FlexibilityNo cancel feeOn-time71%
LufthansaCheapest$514Average$951FlexibilityNo cancel feeOn-time76%

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