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Reagan-National

$465+ 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 5/29. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — DCA
mar. 31 — abr. 71
lun. 3/31
lun. 4/7
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 marzo 26, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$532
(American Airlines)

One-way from

$467
(Air Europa)

Popular in

January

Cheapest in

November

Average price

$638
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. 5% potential increase in price ($46 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in March 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 marzo 26, 2025.

This British Airways deal was found by Cheapflights users on 3/25. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 4/212:20 pmOPO - DCA
2 stops15h 45mBritish Airways
lun. 4/711:40 amDCA - OPO
2 stops14h 55mBritish Airways
Deal found 3/25$524
This American Airlines deal was found by Cheapflights users on 3/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 5/812:20 pmOPO - DCA
2 stops15h 16mAmerican Airlines
jue. 5/159:45 amDCA - OPO
2 stops16h 50mAmerican Airlines
Deal found 3/24$532
This Delta deal was found by Cheapflights users on 3/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 5/19:25 amOPO - DCA
2 stops18h 20mDelta
sáb. 5/176:32 pmDCA - OPO
2 stops18h 08mDelta
Deal found 3/25$586
This United Airlines deal was found by Cheapflights users on 3/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 4/212:35 pmOPO - DCA
1 stop12h 07mUnited Airlines
lun. 4/72:00 pmDCA - OPO
2 stops16h 15mUnited Airlines
Deal found 3/25$592
This Expedia deal was found by Cheapflights users on 3/25. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 4/246:00 amOPO - DCA
2 stops20h 08mMultiple Airlines
sáb. 5/104:35 pmDCA - OPO
2 stops16h 10mMultiple Airlines
Deal found 3/25$676
This Gurufare deal was found by Cheapflights users on 3/24. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 5/812:20 pmOPO - DCA
2 stops15h 16mIberia
jue. 5/221:15 pmDCA - OPO
2 stops13h 20mIberia
Deal found 3/24$687
This Aeromexico deal was found by Cheapflights users on 3/24. 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 Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 4/164:20 pmOPO - DCA
2 stops29h 31mAir France
mié. 4/3011:00 amDCA - OPO
2 stops40h 25mAir France
Deal found 3/24$737
This Justfly.com deal was found by Cheapflights users on 3/24. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/2811:20 amOPO - DCA
1 stop14h 46mAir Canada
lun. 9/294:35 pmDCA - OPO
1 stop12h 00mAir Canada
Deal found 3/24$1,136
This Kiwi.com deal was found by Cheapflights users on 3/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 5/16:05 pmOPO - DCA
1 stop32h 37mTAP AIR PORTUGAL
sáb. 5/171:15 pmDCA - OPO
1 stop16h 15mTAP AIR PORTUGAL
Deal found 3/24$1,301

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 marzo 26, 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

jue. 5/8

12:20 pm-10:36 pm

2 stops15h 16m

Washington, D.C. Reagan-National

jue. 5/15

9:45 am-7:35 am

2 stops16h 50m

$532

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

jue. 5/1

8:15 am-10:29 pm

2 stops19h 14m

Washington, D.C. Reagan-National

sáb. 5/17

11:40 am-8:35 pm

2 stops27h 55m

$540

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

jue. 5/1

9:25 am-10:45 pm

2 stops18h 20m

Washington, D.C. Reagan-National

sáb. 5/17

6:32 pm-5:40 pm

2 stops18h 08m

$586

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

mié. 4/16

6:00 am-9:05 pm

2 stops20h 05m

Washington, D.C. Reagan-National

mié. 4/30

3:30 pm-3:45 pm

2 stops19h 15m

$648

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

jue. 4/24

6:00 am-9:08 pm

2 stops20h 08m

Washington, D.C. Reagan-National

sáb. 5/10

4:35 pm-1:45 pm

2 stops16h 10m

$676

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

jue. 5/8

12:20 pm-10:36 pm

2 stops15h 16m

Washington, D.C. Reagan-National

jue. 5/22

1:15 pm-7:35 am

2 stops13h 20m

$687

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

mié. 4/16

4:20 pm-4:51 pm

2 stops29h 31m

Washington, D.C. Reagan-National

mié. 4/30

11:00 am-8:25 am

2 stops40h 25m

$737

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

jue. 5/1

6:05 pm-9:42 pm

1 stop32h 37m

Washington, D.C. Reagan-National

sáb. 5/17

1:15 pm-10:30 am

1 stop16h 15m

$1,301

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

vie. 4/11

9:00 am-9:08 pm

2 stops17h 08m

Washington, D.C. Reagan-National

dom. 4/13

4:10 pm-12:05 pm

2 stops14h 55m

$3,411

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

jue. 5/29

11:35 am-10:45 pm

2 stops16h 10m

$465

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/25

Showing 1-10 of 16 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 marzo 26, 2025.
See what other customers who have flown with Delta, Air France and United Airlines from Porto to Washington, D.C. have to say. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,891 reviews

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

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
7,891 reviews
Delta
8.0
Very good
7,891 reviews

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

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
7.4
Good
1,423 reviews
Delta
8.0
Very good
7,891 reviews

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

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
8,608 reviews
Delta
8.0
Very good
7,891 reviews

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

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
7,891 reviews

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

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
1,825 reviews
Delta
8.0
Very good
7,891 reviews

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

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 $514. Iberia flights start at $580 while deals on United Airlines start at $723 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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Alternative routes for Porto to Reagan-National

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