Porto

$489+ Cheap flights from Reagan-National (DCA) to Porto (OPO)

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 10/23. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — OPO
May 3 — May 101
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Cheap flight deals from Reagan-National to Porto

Discover tips and strategies to find the most affordable flight options for your journey from Reagan-National (DCA) to Porto (OPO). 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 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$691
(United)

One-way from

$546
(Mytrip)

Popular in

January

Cheapest in

November

Average price

$792
Provider with most accurate pricing for Washington, D.C. Reagan-National-Porto flight deals.
Provider most trusted by Cheapflights users for Washington, D.C. Reagan-National-Porto flights.
From Washington, D.C. Reagan-National to Porto
One-way flight from Washington, D.C. Reagan-National to Porto
Highest demand for flights based on searches. 29% potential increase in price ($428 potential increase over avg. RT price).
Cheapest flight prices on average. 6% potential price decrease ($66 potential savings vs. average RT price).
Average for round-trip flights in April 2025

Find flight deals from Reagan-National to Porto

Cheapest flights from Reagan-National to Porto
Explore the most affordable flight options available from Reagan-National to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 28, 2025.

This Mytrip deal was found by Cheapflights users on 4/27. 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.
Mon 5/1212:55 pmDCA - OPO
3 stops28h 30mMultiple Airlines
Wed 5/213:25 pmOPO - DCA
2 stops35h 28mMultiple Airlines
Deal found 4/27$669
This Air Canada deal was found by Cheapflights users on 4/27. 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.
Wed 9/249:40 amDCA - OPO
1 stop18h 40mAir Canada
Tue 10/76:00 amOPO - DCA
2 stops20h 51mAir Canada
Deal found 4/27$684
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Tue 8/55:15 pmDCA - OPO
1 stop9h 30mUnited Airlines
Tue 8/1212:50 pmOPO - DCA
2 stops28h 30mUnited Airlines
Deal found 4/28$690
This KAYAK deal was found by Cheapflights users on 4/28. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/12:54 pmDCA - OPO
2 stops23h 36mBritish Airways
Tue 7/812:20 pmOPO - DCA
2 stops15h 51mBritish Airways
Deal found 4/28$727
This American Airlines deal was found by Cheapflights users on 4/28. 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 7/12:54 pmDCA - OPO
2 stops15h 46mAmerican Airlines
Wed 7/912:20 pmOPO - DCA
2 stops15h 51mAmerican Airlines
Deal found 4/28$728
This Delta deal was found by Cheapflights users on 4/28. 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 7/84:45 pmDCA - OPO
2 stops17h 45mDelta
Tue 8/56:15 amOPO - DCA
2 stops17h 44mDelta
Deal found 4/28$740
This oojo deal was found by Cheapflights users on 4/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/221:45 pmDCA - OPO
1 stop16h 00mTAP AIR PORTUGAL
Fri 10/3112:00 pmOPO - DCA
2 stops36h 30mTAP AIR PORTUGAL
Deal found 4/28$957
This Air France deal was found by Cheapflights users on 4/27. 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.
Sat 6/142:55 pmDCA - OPO
2 stops14h 45mKLM
Tue 6/246:15 amOPO - DCA
2 stops15h 45mKLM
Deal found 4/27$976

Cheapflights Fare Finder

Customize your flight search to find flights from Reagan-National to Porto 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 28, 2025.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Porto that are best for you.

Fly from

Reagan-National

Fly to

Porto

Route

Depart

Return

Price

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Mon 5/12

12:55 pm-10:25 pm

3 stops28h 30m

Porto

Wed 5/21

3:25 pm-9:53 pm

2 stops35h 28m

$669

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Wed 9/24

12:55 pm-9:20 am

2 stops15h 25m

Porto

Tue 10/7

6:00 am-9:51 pm

2 stops20h 51m

$684

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Tue 8/5

5:15 pm-7:45 am

1 stop9h 30m

Porto

Tue 8/12

12:50 pm-12:20 pm

2 stops28h 30m

$690

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Tue 7/1

2:54 pm-7:30 pm

2 stops23h 36m

Porto

Tue 7/8

12:20 pm-11:11 pm

2 stops15h 51m

$727

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Tue 7/1

2:54 pm-11:40 am

2 stops15h 46m

Porto

Wed 7/9

12:20 pm-11:11 pm

2 stops15h 51m

$728

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Tue 7/8

4:45 pm-3:30 pm

2 stops17h 45m

Porto

Tue 8/5

6:15 am-6:59 pm

2 stops17h 44m

$740

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Wed 10/22

1:45 pm-10:45 am

1 stop16h 00m

Porto

Fri 10/31

12:00 pm-8:30 pm

2 stops36h 30m

$957

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Sat 6/14

2:55 pm-10:40 am

2 stops14h 45m

Porto

Tue 6/24

6:15 am-5:00 pm

2 stops15h 45m

$976

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Mon 7/14

5:00 pm-7:35 am

2 stops33h 35m

Porto

Wed 7/23

12:20 pm-11:11 pm

2 stops15h 51m

$1,056

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Thu 10/23

7:00 pm-9:45 am

1 stop9h 45m

$489

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 15 results
1
2

Compare providers for flights from Reagan-National to Porto

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Reagan-National to Porto in April.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C. Reagan-National Airport-Porto flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Reagan-National Airport-Porto flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Reagan-National Airport-Porto flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Reagan-National Airport-Porto 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 Washington, D.C. Reagan-National Airport-Porto 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 Reagan-National to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto from Reagan-National 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 Washington, D.C. Reagan-National Airport to Porto

What is the cheapest time of day to fly from DCA to OPO?

Find hourly flight availability from Reagan-National to Porto. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 28, 2025.

One of the essential ways to save on airfare from Washington, D.C. Reagan-National Airport to Porto is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 40% on airfare.

Rainfall in Porto by month

Plan your trip to Porto by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Porto ranges from 0.7 - 7.7 inches per month. December is typically the wettest month, when rainfall can reach 7.7 in. July is typically the driest time to visit Porto when rainfall is around 0.7 in.

Temperature in Porto by month

Plan your trip to Porto by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Porto, 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 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

Reviews of airlines servicing Porto

Get insights into the airlines that provide service to Porto. 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 Porto. Reviews last updated April 28, 2025.
To help decide which airline to fly from Washington, D.C. to Porto, see what other customers have to say about Delta, KLM and United Airlines. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good
8.0
Very good

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Reagan-National to Porto. 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 into for flights to Porto from Washington, D.C. Reagan-National?

    If you book a flight to Porto from Washington, D.C. Reagan-National, you will be flying to Porto, which is the city’s only airport. Porto (OPO) is located 6.8 mi from the center of Porto. There are 0 flights from Washington, D.C. Reagan-National to Porto per day from 1 airline.

  • What are the cheapest airlines flying from Washington, D.C. Reagan-National Airport to Porto round-trip?

    Our cheapest airline available from Washington, D.C. Reagan-National Airport to Porto is United Airlines. Our recent data shows that you can find tickets from as low as $696 on this airline. Additional options worth looking into are Air Canada and British Airways, starting at $698 and $727 round-trip. Users have found that United Airlines is 31% cheaper than the other options available to this destination.

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

    $549 is the cheapest one-way deal found within the past few days, from Air Canada. You may also be able to find cheap deals on United Airlines and TAP AIR PORTUGAL, with prices starting from $554 and $644, respectively.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Reagan-National to Porto 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 Washington, D.C. Reagan-National Airport to Porto?

    Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Porto (average of $523). Flying from Washington, D.C. Reagan-National Airport to Porto in June is currently the most expensive (average of $1,071). 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
Aveiro
Coimbra
Matosinhos
Arcos de Valdevez

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Top airline flying from Reagan-National to Porto

Discover the top airline that operate flights from Reagan-National to Porto. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$567Average$1,024FlexibilityNo cancel feeOn-time69%

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