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Reagan-National

$349+ 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 2/24. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — DCA
Nov 19 — Nov 261
Wed 11/19
Wed 11/26
1 adult, Economy
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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 October 20, 2025.

This Delta deal was found by Cheapflights users on 10/19. 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 12/411:15 amOPO - DCA
2 stops16h 42mDelta
Sun 12/710:08 amDCA - OPO
2 stops19h 22mDelta
Deal found 10/19$566
This Air Canada deal was found by Cheapflights users on 10/19. 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.
Thu 12/46:00 amOPO - DCA
2 stops21h 35mAir Canada
Sun 12/711:05 amDCA - OPO
2 stops19h 35mAir Canada
Deal found 10/19$584
This Delta deal was found by Cheapflights users on 10/18. 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 10/236:30 amOPO - DCA
2 stops21h 29mDelta
Sun 11/911:10 amDCA - OPO
2 stops18h 20mDelta
Deal found 10/18$637
This Delta deal was found by Cheapflights users on 10/17. 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 11/36:30 amOPO - DCA
2 stops21h 32mDelta
Sun 11/161:15 pmDCA - OPO
2 stops16h 15mDelta
Deal found 10/17$640
This Delta deal was found by Cheapflights users on 10/18. 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.
Tue 10/216:15 amOPO - DCA
2 stops20h 52mDelta
Sat 11/812:31 pmDCA - OPO
2 stops16h 59mDelta
Deal found 10/18$641
This Delta deal was found by Cheapflights users on 10/18. 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.
Tue 10/216:15 amOPO - DCA
2 stops20h 52mDelta
Mon 11/1011:10 amDCA - OPO
2 stops18h 20mDelta
Deal found 10/18$652
This Air France deal was found by Cheapflights users on 10/18. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2111:35 amOPO - DCA
2 stops15h 32mMultiple Airlines
Sat 11/82:00 pmDCA - OPO
2 stops15h 30mMultiple Airlines
Deal found 10/18$667
This American Airlines deal was found by Cheapflights users on 10/18. 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 12/258:20 amOPO - DCA
2 stops29h 38mAmerican Airlines
Sat 1/311:32 amDCA - OPO
2 stops15h 08mAmerican Airlines
Deal found 10/18$712
This United Airlines deal was found by Cheapflights users on 10/18. 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 11/112:35 pmOPO - DCA
1 stop12h 55mUnited Airlines
Wed 11/54:23 pmDCA - OPO
1 stop12h 07mUnited Airlines
Deal found 10/18$713
This Air France deal was found by Cheapflights users on 10/18. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/236:30 amOPO - DCA
2 stops15h 40mMultiple Airlines
Sat 11/82:00 pmDCA - OPO
2 stops15h 30mMultiple Airlines
Deal found 10/18$756
This Delta deal was found by Cheapflights users on 10/18. 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 11/16:00 amOPO - DCA
2 stops20h 59mDelta
Wed 11/51:15 pmDCA - OPO
2 stops16h 15mDelta
Deal found 10/18$771

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 October 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$566
(Delta)

One-way from

$349
(British Airways)

Popular in

January

Cheapest in

May

Average price

$686
Provider with most accurate pricing for Porto-Washington, D.C. (WAS) flight deals.
Search Deals
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
Search Deals
One-way flight from Porto to Washington, D.C. Reagan-National
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($149 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($35 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

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 October 20, 2025.
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

Thu 12/4

11:15 am-10:57 pm

2 stops16h 42m

Washington, D.C. Reagan-National

Sun 12/7

10:08 am-10:30 am

2 stops19h 22m

$566

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Thu 12/4

6:00 am-10:35 pm

2 stops21h 35m

Washington, D.C. Reagan-National

Sun 12/7

11:05 am-11:40 am

2 stops19h 35m

$584

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Wed 4/1

12:35 pm-8:38 pm

1 stop13h 03m

Washington, D.C. Reagan-National

Sun 4/5

7:00 pm-9:45 am

1 stop9h 45m

$639

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Mon 11/3

6:30 am-11:02 pm

2 stops21h 32m

Washington, D.C. Reagan-National

Sun 11/16

1:15 pm-10:30 am

2 stops16h 15m

$640

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Wed 4/1

5:00 am-11:08 pm

2 stops23h 08m

Washington, D.C. Reagan-National

Sun 4/5

5:00 pm-3:35 pm

2 stops17h 35m

$643

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Fri 12/12

8:20 am-6:57 pm

2 stops15h 37m

Washington, D.C. Reagan-National

Tue 12/16

4:49 pm-11:45 am

2 stops13h 56m

$644

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Thu 12/25

8:20 am-8:58 am

2 stops29h 38m

Washington, D.C. Reagan-National

Sat 1/3

11:32 am-7:40 am

2 stops15h 08m

$712

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Sat 11/1

12:35 pm-9:30 pm

1 stop12h 55m

Washington, D.C. Reagan-National

Wed 11/5

4:23 pm-9:30 am

1 stop12h 07m

$713

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Thu 2/26

12:25 pm-10:35 pm

2 stops15h 10m

$349

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Tue 2/24

12:25 pm-10:35 pm

2 stops15h 10m

$349

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/18

Showing 1-10 of 19 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 13h 03m. 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
Arlington
Tysons
Springfield
Silver Spring
Hanover
Gaithersburg
Fredericksburg
Fairfax
Linthicum Heights
Falls Church
Owings Mills
Manassas
Largo
Oxon Hill
Laurel
Towson
National Harbor
Waldorf

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