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Reagan-National

$354+ 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 1/11. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — DCA
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
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 September 16, 2025.

Round-trip from

$545
(American Airlines)

One-way from

$354
(American Airlines)

Popular in

January

Cheapest in

May

Average price

$793
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. 15% potential increase in price ($123 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($37 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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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 September 16, 2025.

This American Airlines deal was found by Cheapflights users on 9/14. 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 10/28:15 amOPO - DCA
2 stops19h 04mAmerican Airlines
Wed 10/155:30 pmDCA - OPO
2 stops13h 10mAmerican Airlines
Deal found 9/14$545
This Delta deal was found by Cheapflights users on 9/15. 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.
Wed 10/86:15 amOPO - DCA
2 stops16h 45mDelta
Tue 10/215:00 pmDCA - OPO
2 stops17h 30mDelta
Deal found 9/15$550
This Delta deal was found by Cheapflights users on 9/15. 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.
Fri 9/269:20 amOPO - DCA
2 stops19h 21mDelta
Sat 10/45:00 pmDCA - OPO
2 stops17h 30mDelta
Deal found 9/15$552
This Air France deal was found by Cheapflights users on 9/14. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/316:30 amOPO - DCA
2 stops17h 10mMultiple Airlines
Tue 11/112:59 pmDCA - OPO
2 stops14h 31mMultiple Airlines
Deal found 9/14$557
This Delta deal was found by Cheapflights users on 9/14. 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.
Thu 10/3011:20 amOPO - DCA
2 stops15h 39mDelta
Sun 11/98:30 amDCA - OPO
2 stops21h 00mDelta
Deal found 9/14$558
This United Airlines deal was found by Cheapflights users on 9/14. 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 10/3012:35 pmOPO - DCA
1 stop12h 03mUnited Airlines
Mon 11/104:30 pmDCA - OPO
1 stop12h 00mUnited Airlines
Deal found 9/14$560
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Fri 10/3112:30 pmOPO - DCA
2 stops36h 25mUnited Airlines
Mon 11/107:00 pmDCA - OPO
1 stop9h 30mUnited Airlines
Deal found 9/14$561
This Air France deal was found by Cheapflights users on 9/14. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/3011:20 amOPO - DCA
2 stops15h 39mAir France
Tue 11/112:59 pmDCA - OPO
2 stops14h 31mAir France
Deal found 9/14$563
This Iberia deal was found by Cheapflights users on 9/14. 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.
Thu 9/258:15 amOPO - DCA
2 stops19h 52mIberia
Sat 10/41:39 pmDCA - OPO
2 stops17h 01mIberia
Deal found 9/14$571
This KLM deal was found by Cheapflights users on 9/14. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/316:30 amOPO - DCA
2 stops17h 10mKLM
Sun 11/97:35 pmDCA - OPO
2 stops14h 50mKLM
Deal found 9/14$574
This Iberia deal was found by Cheapflights users on 9/14. 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.
Wed 9/248:35 pmOPO - DCA
2 stops31h 32mIberia
Sat 10/41:39 pmDCA - OPO
2 stops21h 16mIberia
Deal found 9/14$582

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 September 16, 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 10/2

8:15 am-6:59 pm

2 stops15h 44m

Washington, D.C. Reagan-National

Wed 10/15

5:30 pm-11:40 am

2 stops13h 10m

$545

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Sat 11/1

6:00 am-10:59 pm

2 stops20h 59m

Washington, D.C. Reagan-National

Tue 11/11

2:59 pm-10:30 am

2 stops14h 31m

$550

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Fri 10/31

6:30 am-10:07 pm

2 stops19h 37m

Washington, D.C. Reagan-National

Mon 11/10

10:30 am-10:15 am

2 stops18h 45m

$550

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Wed 10/8

6:15 am-5:10 pm

2 stops15h 55m

Washington, D.C. Reagan-National

Tue 10/21

5:00 pm-3:30 pm

2 stops17h 30m

$550

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Fri 9/26

9:20 am-11:41 pm

2 stops19h 21m

Washington, D.C. Reagan-National

Sat 10/4

5:00 pm-3:30 pm

2 stops17h 30m

$552

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Fri 10/31

6:30 am-7:40 pm

2 stops17h 10m

Washington, D.C. Reagan-National

Tue 11/11

2:59 pm-10:30 am

2 stops14h 31m

$557

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Sat 11/1

6:00 am-10:59 pm

2 stops20h 59m

Washington, D.C. Reagan-National

Mon 11/10

2:59 pm-10:30 am

2 stops14h 31m

$557

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Thu 10/30

11:20 am-10:59 pm

2 stops15h 39m

Washington, D.C. Reagan-National

Sun 11/9

8:30 am-10:30 am

2 stops21h 00m

$558

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Sun 1/11

12:25 pm-10:39 pm

2 stops15h 14m

$354

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Wed 11/19

8:20 am-10:41 pm

2 stops19h 21m

$355

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 17 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 15h 44m. 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.

  • What is the cheapest month to book a flight from Porto to Washington, D.C. Reagan-National Airport?

    Currently, February is the cheapest month in which you can book a flight from Porto to Washington, D.C. Reagan-National Airport (average of $278). Flying from Porto to Washington, D.C. Reagan-National Airport in March is currently the most expensive (average of $335). 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

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
Woodbridge
Arlington
Alexandria
Tysons
Silver Spring
Springfield
Gaithersburg
Fredericksburg
Linthicum Heights
Fairfax
Falls Church
Owings Mills
Manassas
Rockville
Hanover
Oxon Hill
Laurel
Towson
National Harbor
Dundalk

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