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Reagan-National

$446+ 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 5/14. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — DCA
Apr 20 — Apr 271
Sun 4/20
Sun 4/27
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 April 15, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$563
(British Airways)

One-way from

$446
(Mytrip)

Popular in

January

Cheapest in

November

Average price

$629
Provider with most accurate pricing for Porto-Washington, D.C. Reagan-National flight deals.
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Provider most trusted by Cheapflights users for Porto-Washington, D.C. Reagan-National 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. 6% potential increase in price ($51 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($23 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 15, 2025.

This British Airways deal was found by Cheapflights users on 4/15. 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.
Thu 5/2212:20 pmOPO - DCA
2 stops15h 16mBritish Airways
Fri 6/66:00 amDCA - OPO
2 stops22h 50mBritish Airways
Deal found 4/15$563
This United Airlines deal was found by Cheapflights users on 4/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/226:00 amOPO - DCA
2 stops16h 54mUnited Airlines
Fri 6/611:10 amDCA - OPO
1 stop14h 45mUnited Airlines
Deal found 4/15$593
This Iberia deal was found by Cheapflights users on 4/14. 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.
Sun 5/188:35 pmOPO - DCA
2 stops31h 01mIberia
Mon 6/212:35 pmDCA - OPO
2 stops22h 20mIberia
Deal found 4/14$639
This Gotogate deal was found by Cheapflights users on 4/15. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/86:00 amOPO - DCA
2 stops20h 53mAir Canada
Wed 5/216:00 amDCA - OPO
2 stops24h 25mAir Canada
Deal found 4/15$650
This American Airlines deal was found by Cheapflights users on 4/14. 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.
Sun 5/188:15 amOPO - DCA
2 stops15h 52mAmerican Airlines
Mon 6/212:35 pmDCA - OPO
2 stops14h 00mAmerican Airlines
Deal found 4/14$731
This Mytrip deal was found by Cheapflights users on 4/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/86:30 amOPO - DCA
3 stops20h 23mMultiple Airlines
Wed 5/216:00 amDCA - OPO
3 stops26h 20mMultiple Airlines
Deal found 4/15$758
This Aeromexico deal was found by Cheapflights users on 4/15. 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 Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/274:20 pmOPO - DCA
2 stops30h 52mAir France
Mon 8/45:00 pmDCA - OPO
2 stops17h 30mAir France
Deal found 4/15$884
This Delta deal was found by Cheapflights users on 4/14. 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.
Mon 4/286:35 amOPO - DCA
2 stops21h 10mDelta
Fri 5/212:10 pmDCA - OPO
2 stops17h 30mDelta
Deal found 4/14$887
This Gotogate deal was found by Cheapflights users on 4/15. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/810:00 amOPO - DCA
2 stops16h 42mTAP AIR PORTUGAL
Wed 5/2111:15 amDCA - OPO
1 stop18h 15mTAP AIR PORTUGAL
Deal found 4/15$2,025

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 April 15, 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 5/22

12:20 pm-10:36 pm

2 stops15h 16m

Washington, D.C. Reagan-National

Fri 6/6

6:00 am-9:50 am

2 stops22h 50m

$563

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Thu 5/22

6:00 am-5:54 pm

2 stops16h 54m

Washington, D.C. Reagan-National

Fri 6/6

11:10 am-6:55 am

1 stop14h 45m

$593

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Sun 5/18

8:35 pm-10:36 pm

2 stops31h 01m

Washington, D.C. Reagan-National

Mon 6/2

12:35 pm-3:55 pm

2 stops22h 20m

$639

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Thu 5/8

6:00 am-9:53 pm

2 stops20h 53m

Washington, D.C. Reagan-National

Wed 5/21

6:00 am-11:25 am

2 stops24h 25m

$650

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Sun 5/18

8:15 am-7:07 pm

2 stops15h 52m

Washington, D.C. Reagan-National

Mon 6/2

12:35 pm-7:35 am

2 stops14h 00m

$731

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Thu 5/8

6:30 am-9:53 pm

3 stops20h 23m

Washington, D.C. Reagan-National

Wed 5/21

6:00 am-1:20 pm

3 stops26h 20m

$758

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Sun 7/27

4:20 pm-6:12 pm

2 stops30h 52m

Washington, D.C. Reagan-National

Mon 8/4

5:00 pm-3:30 pm

2 stops17h 30m

$884

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Mon 4/28

6:35 am-10:45 pm

2 stops21h 10m

Washington, D.C. Reagan-National

Fri 5/2

12:10 pm-10:40 am

2 stops17h 30m

$887

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Thu 5/8

10:00 am-9:42 pm

2 stops16h 42m

Washington, D.C. Reagan-National

Wed 5/21

11:15 am-10:30 am

1 stop18h 15m

$2,025

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Wed 5/14

8:25 am-10:28 pm

2 stops19h 03m

$446

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/14

Showing 1-10 of 17 results
1
2
  • Most accurate provider: When it comes to deals on Porto-Washington, D.C. Reagan-National Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Porto-Washington, D.C. Reagan-National Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Porto-Washington, D.C. Reagan-National Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Porto-Washington, D.C. Reagan-National Airport flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Porto-Washington, D.C. Reagan-National Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

Cheapflights Insights

Everything you need to know about your flight from Porto to Washington, D.C. Reagan-National Airport

Rainfall in Reagan-National by month

Plan your trip to Reagan-National by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. Reagan-National Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Reagan-National Airport when rainfall is around 2.6 in.

Temperature in Reagan-National by month

Plan your trip to Reagan-National by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C. Reagan-National Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Reagan-National

Get insights into the airlines that provide service to Reagan-National. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Reagan-National. Reviews last updated April 15, 2025.
Delta
8.0
Very good
7,918 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Comfort

7.9

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,918 reviews
Delta
8.0
Very good
7,918 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Comfort

7.9

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Air France
7.5
Good
1,435 reviews
Delta
8.0
Very good
7,918 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Comfort

7.9

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,658 reviews
Delta
8.0
Very good
7,918 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Comfort

7.9

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,918 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Comfort

7.9

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
TAP AIR PORTUGAL
7.1
Good
1,837 reviews
Delta
8.0
Very good
7,918 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Comfort

7.9

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.

  • What are the cheapest airlines to fly from Porto to Washington, D.C. Reagan-National Airport one-way?

    To fly one-way, consider booking your trip with British Airways, which is currently one of the cheapest options available, starting at $517. Iberia flights start at $540 while deals on American Airlines start at $544 one-way.

  • 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 June is currently the most expensive (average of $345). 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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