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Portugal

$352+ Cheap flights from Reagan-National (DCA) 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 8/30. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — LIS
Aug 24 — Aug 311
Mon 8/24
Mon 8/31
1 adult, Economy
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Cheap flight deals from Reagan-National to Portugal

Cheapest flights from Reagan-National to Portugal
Explore the most affordable flight options available from Reagan-National to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 25, 2026.

This Ovago deal was found by Cheapflights users on 7/24. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/35:15 pm
DCA
-
SJZ
3 stops15h 10m
Multiple Airlines
Tue 11/1010:30 am
SJZ
-
DCA
2 stops27h 21m
Multiple Airlines
Deal found 7/24$629
This FlightHub deal was found by Cheapflights users on 7/25. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/121:20 pm
DCA
-
PDL
1 stop13h 00m
Multiple Airlines
Mon 11/165:50 pm
PDL
-
DCA
1 stop18h 15m
Multiple Airlines
Deal found 7/25$651
This Mytrip deal was found by Cheapflights users on 7/24. 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 9/86:55 pm
DCA
-
LIS
2 stops30h 35m
Multiple Airlines
Tue 9/1511:35 am
LIS
-
DCA
1 stop15h 59m
Multiple Airlines
Deal found 7/24$688
This FlightHub deal was found by Cheapflights users on 7/23. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/89:00 am
DCA
-
PDL
1 stop17h 20m
Multiple Airlines
Sun 11/155:50 pm
PDL
-
DCA
1 stop20h 01m
Multiple Airlines
Deal found 7/23$693
This FlightHub deal was found by Cheapflights users on 7/24. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/216:00 am
DCA
-
PDL
1 stop20h 55m
Multiple Airlines
Mon 11/305:50 pm
PDL
-
DCA
1 stop18h 15m
Multiple Airlines
Deal found 7/24$713
This Mytrip deal was found by Cheapflights users on 7/24. 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.
Wed 10/76:00 am
DCA
-
LIS
2 stops22h 35m
Multiple Airlines
Tue 10/138:15 am
LIS
-
DCA
2 stops19h 19m
Multiple Airlines
Deal found 7/24$715
This American Airlines deal was found by Cheapflights users on 7/23. 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.
Wed 12/94:49 pm
DCA
-
LIS
1 stop9h 51m
American Airlines
Wed 2/246:30 am
LIS
-
DCA
2 stops15h 28m
American Airlines
Deal found 7/23$724
This Mytrip deal was found by Cheapflights users on 7/24. 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.
Wed 9/911:00 am
DCA
-
LIS
1 stop19h 15m
Multiple Airlines
Wed 9/1610:40 am
LIS
-
DCA
1 stop14h 19m
Multiple Airlines
Deal found 7/24$728
This oojo deal was found by Cheapflights users on 7/23. 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 12/91:44 pm
DCA
-
LIS
1 stop12h 56m
British Airways
Wed 2/2411:05 am
LIS
-
DCA
1 stop14h 41m
British Airways
Deal found 7/23$730
This FlightHub deal was found by Cheapflights users on 7/22. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/15:15 pm
DCA
-
PDL
1 stop9h 05m
Multiple Airlines
Thu 11/55:50 pm
PDL
-
DCA
1 stop18h 15m
Multiple Airlines
Deal found 7/22$743
This Mytrip deal was found by Cheapflights users on 7/24. 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.
Wed 10/711:00 am
DCA
-
LIS
1 stop17h 35m
Multiple Airlines
Wed 10/148:15 am
LIS
-
DCA
2 stops16h 45m
Multiple Airlines
Deal found 7/24$748
This Air Canada deal was found by Cheapflights users on 7/20. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/78:45 pm
DCA
-
OPO
2 stops40h 45m
Air Canada
Fri 11/136:00 am
OPO
-
DCA
2 stops21h 38m
Air Canada
Deal found 7/20$751

Find flight deals from Reagan-National to Portugal

Keep the following information in mind while searching for Reagan-National to Portugal flight deals. Data was last updated July 25, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$628
(FlightHub)

One-way from

$352
(Booking.com)

Popular in

June

Cheapest in

January

Average price

$1,252
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 Washington, D.C. Reagan-National to Portugal
Search Deals
One-way flight from Washington, D.C. Reagan-National to Portugal
Search Deals
Highest demand for flights based on searches. 23% potential increase in price ($297 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Reagan-National 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 July 25, 2026.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Portugal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Velas

DCA - SJZ

DCASJZ

Washington, D.C. Reagan-National

Tue 11/3

5:15 pm-12:25 pm

3 stops15h 10m

Velas Sao Jorge Island

Tue 11/10

10:30 am-9:51 am

2 stops27h 21m

$629

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Wed 10/21

11:05 am-10:30 am

1 stop18h 25m

Porto

Wed 10/28

5:55 am-10:00 pm

2 stops20h 05m

$785

Washington, D.C.Lisbon

DCA - LIS

DCALIS

Washington, D.C. Reagan-National

Mon 10/19

6:00 am-8:20 am

1 stop21h 20m

Lisbon Humberto Delgado

Tue 10/27

12:50 pm-10:29 am

1 stop25h 39m

$792

Washington, D.C.Lisbon

DCA - LIS

DCALIS

Washington, D.C. Reagan-National

Mon 9/28

3:05 pm-11:15 am

2 stops15h 10m

Lisbon Humberto Delgado

Wed 10/7

5:00 am-4:37 pm

2 stops16h 37m

$834

Washington, D.C.Ponta Delgada

DCA - PDL

DCAPDL

Washington, D.C. Reagan-National

Sun 8/23

10:27 am-8:40 am

1 stop18h 13m

Ponta Delgada Nordela

Tue 9/1

11:00 am-10:44 am

1 stop27h 44m

$837

Washington, D.C.Ponta Delgada

DCA - PDL

DCAPDL

Washington, D.C. Reagan-National

Sun 8/23

8:25 am-8:40 am

1 stop20h 15m

Ponta Delgada Nordela

Thu 9/3

11:00 am-7:39 pm

1 stop12h 39m

$846

Washington, D.C.Ponta Delgada

DCA - PDL

DCAPDL

Washington, D.C. Reagan-National

Tue 9/8

1:01 pm-8:40 am

1 stop15h 39m

Ponta Delgada Nordela

Wed 9/16

11:00 am-7:49 am

1 stop24h 49m

$846

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Tue 8/18

5:00 pm-10:30 am

1 stop12h 30m

Porto

Tue 8/25

5:00 am-4:34 pm

2 stops16h 34m

$862

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Fri 10/16

6:00 am-9:45 am

1 stop22h 45m

Porto

Tue 10/20

11:15 am-3:40 pm

1 stop33h 25m

$876

Washington, D.C.Lajes

DCA - TER

DCATER

Washington, D.C. Reagan-National

Mon 10/26

9:55 pm-9:00 am

2 stops32h 05m

Lajes

Fri 10/30

1:50 pm-9:51 am

2 stops23h 01m

$902

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/20

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Reagan-National to Portugal

Have a flexible travel schedule? Discover the best time to fly to Portugal from Reagan-National 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 Washington, D.C. Reagan-National Airport to Portugal

No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Reagan-National 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 Washington, D.C. Reagan-National Airport to Portugal?

    For as low as $785, Delta can have you in Portugal from Washington, D.C. Reagan-National Airport in 18h 25m. There are 3520 mi between Washington, D.C. Reagan-National Airport and Portugal. Both multi-stop and nonstop flights can be found to your destination and back.

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

    The most popular route from Washington, D.C. Reagan-National Airport to Portugal is Washington, D.C. Reagan-National - Lisbon Humberto Delgado. You may also consider Washington, D.C. Reagan-National - Porto or Washington, D.C. Reagan-National - Ponta Delgada Nordela.

  • Can I find deals for flights from Reagan-National to Portugal that include hotel bookings?

    Yes. In addition to deals on Reagan-National to Portugal flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Reagan-National to Portugal?

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

  • Can I find deals for business class flights from Reagan-National to Portugal?

    Yes. Cheapflights offers flight deals from Reagan-National 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.

See more FAQs

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Alternative routes for Reagan-National to Portugal

See prices for flight routes from nearby airports that may be better suited for you.
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Baltimore to Barcelona-El Prat flights

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