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Reagan-National

$361+ Cheap flights from Porto (OPO) to Reagan-National (DCA)

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 3/10. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — DCA
Feb 14 — Feb 211
Sat 2/14
Sat 2/21
1 adult, Economy
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Cheap flight deals from Porto to Reagan-National

Discover tips and strategies to find the most affordable flight options for your journey from Porto (OPO) to Reagan-National (DCA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 15, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$523
(Delta)

One-way from

$361
(American Airlines)

Popular in

August

Cheapest in

June

Average price

$574
Provider with most accurate pricing for Porto-Washington, D.C. (WAS) flight deals.
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Provider most trusted by Cheapflights users for Porto-Washington, D.C. (WAS) flights.
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From Porto to Washington, D.C. Reagan-National
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One-way flight from Porto to Washington, D.C. Reagan-National
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Highest demand for flights based on searches. 5% potential increase in price ($37 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find flight deals from Porto to Reagan-National

Cheapest flights from Porto to Reagan-National
Explore the most affordable flight options available from Porto to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 15, 2026.

This Delta deal was found by Cheapflights users on 1/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/245:00 am
OPO
-
DCA
2 stops19h 52m
Delta
Sat 2/712:00 pm
DCA
-
OPO
2 stops17h 30m
Delta
Deal found 1/14$520
This Delta deal was found by Cheapflights users on 1/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/3111:25 am
OPO
-
DCA
2 stops16h 28m
Delta
Sat 2/72:25 pm
DCA
-
OPO
2 stops15h 05m
Delta
Deal found 1/15$523
This British Airways deal was found by Cheapflights users on 1/14. 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.
Sat 1/248:20 am
OPO
-
DCA
2 stops17h 39m
Multiple Airlines
Sat 2/71:44 pm
DCA
-
OPO
2 stops12h 56m
Multiple Airlines
Deal found 1/14$534
This American Airlines deal was found by Cheapflights users on 1/13. 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.
Mon 6/158:20 am
OPO
-
DCA
2 stops29h 40m
American Airlines
Sun 7/192:59 pm
DCA
-
OPO
2 stops15h 46m
American Airlines
Deal found 1/13$535
This American Airlines deal was found by Cheapflights users on 1/15. 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.
Sun 3/18:20 am
OPO
-
DCA
2 stops15h 23m
American Airlines
Sun 3/81:41 pm
DCA
-
OPO
2 stops13h 59m
American Airlines
Deal found 1/15$543
This American Airlines deal was found by Cheapflights users on 1/14. 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.
Tue 5/58:20 am
OPO
-
DCA
2 stops15h 38m
American Airlines
Tue 5/121:25 pm
DCA
-
OPO
2 stops13h 15m
American Airlines
Deal found 1/14$544
This British Airways deal was found by Cheapflights users on 1/14. 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.
Wed 5/68:20 pm
OPO
-
DCA
2 stops25h 25m
British Airways
Thu 5/144:43 pm
DCA
-
OPO
2 stops22h 37m
British Airways
Deal found 1/14$557
This British Airways deal was found by Cheapflights users on 1/14. 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.
Wed 5/68:20 pm
OPO
-
DCA
2 stops26h 40m
British Airways
Sun 5/1010:11 am
DCA
-
OPO
2 stops29h 09m
British Airways
Deal found 1/14$565
This British Airways deal was found by Cheapflights users on 1/14. 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.
Sun 5/39:25 pm
OPO
-
DCA
2 stops24h 04m
British Airways
Thu 5/144:43 pm
DCA
-
OPO
2 stops22h 37m
British Airways
Deal found 1/14$574
This Iberia deal was found by Cheapflights users on 1/14. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/212:25 pm
OPO
-
DCA
2 stops15h 22m
Iberia
Mon 5/115:59 pm
DCA
-
OPO
2 stops21h 01m
Iberia
Deal found 1/14$579
This British Airways deal was found by Cheapflights users on 1/15. 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.
Fri 3/68:20 am
OPO
-
DCA
2 stops15h 28m
Multiple Airlines
Sun 5/241:24 pm
DCA
-
OPO
2 stops13h 16m
Multiple Airlines
Deal found 1/15$580
This Iberia deal was found by Cheapflights users on 1/14. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/212:25 pm
OPO
-
DCA
2 stops15h 22m
Iberia
Fri 5/151:25 pm
DCA
-
OPO
2 stops21h 35m
Iberia
Deal found 1/14$597

Cheapflights Fare Finder

 
Customize your flight search to find flights from Porto to Reagan-National 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 15, 2026.
Use the filters below to find and compare flights from Porto to Washington, D.C. Reagan-National Airport that are best for you.

Fly from

Porto

Fly to

Reagan-National

Route

Depart

Return

Price

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Sat 1/31

11:25 am-10:53 pm

2 stops16h 28m

Washington, D.C. Reagan-National

Sat 2/7

2:25 pm-10:30 am

2 stops15h 05m

$523

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Mon 6/15

8:20 am-7:46 am

2 stops28h 26m

Washington, D.C. Reagan-National

Sun 7/19

6:15 am-7:40 am

2 stops20h 25m

$534

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Fri 3/6

8:20 am-6:48 pm

2 stops15h 28m

Washington, D.C. Reagan-National

Sat 5/30

1:24 pm-7:40 am

2 stops13h 16m

$534

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Wed 4/15

8:20 am-10:15 pm

2 stops18h 55m

Washington, D.C. Reagan-National

Sun 4/19

1:29 pm-11:45 am

2 stops17h 16m

$534

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Tue 5/5

8:20 am-6:58 pm

2 stops15h 38m

Washington, D.C. Reagan-National

Tue 5/12

1:25 pm-7:40 am

2 stops13h 15m

$544

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Fri 5/8

9:10 pm-4:29 pm

2 stops24h 19m

Washington, D.C. Reagan-National

Wed 5/13

4:43 pm-7:05 pm

2 stops21h 22m

$557

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Thu 5/7

7:55 pm-4:45 pm

2 stops25h 50m

Washington, D.C. Reagan-National

Wed 5/13

4:43 pm-7:05 pm

2 stops21h 22m

$557

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Wed 5/6

8:20 pm-4:29 pm

2 stops25h 09m

Washington, D.C. Reagan-National

Tue 5/12

5:59 pm-7:30 pm

2 stops20h 31m

$557

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Fri 5/8

9:10 pm-5:17 pm

2 stops25h 07m

Washington, D.C. Reagan-National

Thu 5/14

4:43 pm-8:20 pm

2 stops22h 37m

$557

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Thu 5/7

7:55 pm-4:29 pm

2 stops25h 34m

Washington, D.C. Reagan-National

Tue 5/12

5:59 pm-7:30 pm

2 stops20h 31m

$557

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/15

Showing 1-10 of 22 results
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Best time to book a flight from Porto to Reagan-National

Have a flexible travel schedule? Discover the best time to fly to Reagan-National from Porto 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.

Related info for your journey

Find useful and relevant information for your journey from Porto to Reagan-National. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Porto to Washington, D.C. Reagan-National?

    Porto (OPO), located 6.8 mi from the city center, is the airport you fly out of when you book flights from Porto to Washington, D.C. Reagan-National. 0 airlines have flights from Porto to Washington, D.C. Reagan-National on a regular basis. Booking flights from Porto to Washington, D.C. Reagan-National should not be difficult; the airport handles an average of 0 outbound flights to Washington, D.C. Reagan-National per day.

  • How long is the flight from Porto to Washington, D.C. Reagan-National Airport?

    Departing from Porto to Washington, D.C. Reagan-National Airport will take you 16h 28m. The distance from Porto to Washington, D.C. Reagan-National Airport is about 3520 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Porto to Reagan-National 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

Traveling to a place near Washington, D.C. Reagan-National Airport?

Book flights to Washington, D.C. Reagan-National Airport if you plan to visit one of these locations
Alexandria
Woodbridge
Tysons
Arlington
Owings Mills
Springfield
Silver Spring
Hanover
Fredericksburg
Linthicum Heights
Rockville
Laurel
Towson
Manassas
National Harbor
Largo
Bowie
McLean
Clinton
Herndon

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