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 $538. American Airlines flights start at $609 while deals on Delta start at $662 one-way.

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 $337). 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.

What is the cheapest month to fly from Porto to Washington, D.C. Reagan-National Airport?

The best pricing can be found in the month of May. Prices to Washington, D.C. Reagan-National Airport from Porto average $719. You can even find prices in May for less than $719, as users have found deals to Washington, D.C. Reagan-National Airport from as low as $544. The month of June appears to be one of the more expensive times to travel to Washington, D.C. Reagan-National Airport from Porto. Flying in the targeted month can save you up to 42%.

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Porto to Washington, D.C. Reagan-National Airport as you normally would.

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.

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.

$456+ Flights from Porto to Washington, D.C. Reagan-National Airport

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Cheap flight deals from Porto to Reagan-National

Round-trip from	$498 (Delta)
One-way from	$456 (Mytrip)
Popular in	June
Cheapest in	May
Average price	$1,028

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. 11% potential increase in price ($89 potential increase over avg. RT price).

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Cheapest flight prices on average. 4% potential price decrease ($31 potential savings vs. average RT price).

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Average for round-trip flights in June 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 June 12, 2025.

Mon 6/2311:25 amOPO - DCA

2 stops17h 08mDelta

Wed 7/91:25 pmDCA - OPO

2 stops16h 15mDelta

Deal found 6/12

$498

Wed 10/812:20 pmOPO - DCA

2 stops15h 35mIberia

Tue 10/215:44 pmDCA - OPO

2 stops12h 56mIberia

Deal found 6/12

$514

Sun 7/2712:20 pmOPO - DCA

2 stops15h 51mAmerican Airlines

Sun 8/32:54 pmDCA - OPO

2 stops15h 46mAmerican Airlines

Deal found 6/12

$532

Wed 10/86:00 amOPO - DCA

2 stops20h 51mAir Canada

Tue 10/2111:00 amDCA - OPO

2 stops19h 30mAir Canada

Deal found 6/10

$563

Tue 7/2912:20 pmOPO - DCA

2 stops15h 51mBritish Airways

Tue 8/197:32 pmDCA - OPO

2 stops31h 03mBritish Airways

Deal found 6/10

$607

Sun 6/2211:20 amOPO - DCA

1 stop27h 58mUnited Airlines

Mon 7/73:05 pmDCA - OPO

1 stop10h 50mUnited Airlines

Deal found 6/12

$640

Thu 7/316:00 amOPO - DCA

2 stops20h 38mMultiple Airlines

Mon 8/187:01 pmDCA - OPO

1 stop9h 44mMultiple Airlines

Deal found 6/10

$774

Wed 10/86:10 pmOPO - DCA

1 stop18h 59mTAP AIR PORTUGAL

Tue 10/211:35 pmDCA - OPO

2 stops13h 25mTAP AIR PORTUGAL

Deal found 6/12

$1,134

Best flights from Porto to Reagan-National
Discover carefully curated flight deals from Porto to Reagan-National that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 12, 2025.

Mon 6/2311:25 amOPO - DCA

2 stops17h 08mDelta

Wed 7/91:25 pmDCA - OPO

2 stops16h 15mDelta

Deal found 6/12

$498

Wed 10/812:20 pmOPO - DCA

2 stops15h 35mIberia

Tue 10/215:44 pmDCA - OPO

2 stops12h 56mIberia

Deal found 6/12

$514

Wed 10/86:00 amOPO - DCA

2 stops20h 51mAir Canada

Tue 10/2111:00 amDCA - OPO

2 stops19h 30mAir Canada

Deal found 6/10

$563

Tue 7/2912:20 pmOPO - DCA

2 stops15h 51mBritish Airways

Tue 8/197:32 pmDCA - OPO

2 stops31h 03mBritish Airways

Deal found 6/10

$607

Sun 6/2211:20 amOPO - DCA

1 stop27h 58mUnited Airlines

Mon 7/73:05 pmDCA - OPO

1 stop10h 50mUnited Airlines

Deal found 6/12

$640

Thu 7/316:00 amOPO - DCA

2 stops20h 38mMultiple Airlines

Mon 8/187:01 pmDCA - OPO

1 stop9h 44mMultiple Airlines

Deal found 6/10

$774

Wed 10/86:10 pmOPO - DCA

1 stop18h 59mTAP AIR PORTUGAL

Tue 10/211:35 pmDCA - OPO

2 stops13h 25mTAP AIR PORTUGAL

Deal found 6/12

$1,134

Last-minute flights from Porto to Reagan-National
Discover last-minute flight deals from Porto to Reagan-National. Data last updated June 12, 2025 and is based on user searches.

Tue 6/176:15 amOPO - DCA

2 stops20h 55mDelta

Tue 6/241:25 pmDCA - OPO

2 stops16h 15mDelta

Deal found 6/11

$661

Tue 6/1712:50 pmOPO - DCA

1 stop26h 28mAir Canada

Tue 6/246:00 amDCA - OPO

2 stops25h 05mAir Canada

Deal found 6/11

$803

Sat 6/218:35 pmOPO - DCA

2 stops31h 32mIberia

Sat 10/1812:34 pmDCA - OPO

2 stops18h 06mIberia

Deal found 6/9

$2,371

Sat 6/215:40 pmOPO - DCA

1 stop18h 58mTAP AIR PORTUGAL

Sat 10/186:55 pmDCA - OPO

1 stop11h 00mTAP AIR PORTUGAL

Deal found 6/9

$5,073

Sun 6/2211:20 amOPO - DCA

1 stop27h 58mUnited Airlines

Mon 7/73:05 pmDCA - OPO

1 stop10h 50mUnited Airlines

Deal found 6/12

$640

Sun 6/2210:30 pmOPO - DCA

3 stops42h 33mMultiple Airlines

Mon 7/76:00 amDCA - OPO

3 stops24h 40mMultiple Airlines

Deal found 6/12

$928

Mon 6/2311:25 amOPO - DCA

2 stops17h 08mDelta

Wed 7/91:25 pmDCA - OPO

2 stops16h 15mDelta

Deal found 6/12

$498

Mon 6/238:35 pmOPO - DCA

2 stops31h 32mIberia

Sun 10/1912:34 pmDCA - OPO

2 stops14h 01mIberia

Deal found 6/9

$2,371

Wed 7/236:00 amOPO - DCA

2 stops20h 48mAir Canada

Wed 7/306:00 amDCA - OPO

1 stop22h 20mAir Canada

Deal found 6/10

$678

Sun 7/2712:20 pmOPO - DCA

2 stops15h 51mAmerican Airlines

Sun 8/32:54 pmDCA - OPO

2 stops15h 46mAmerican Airlines

Deal found 6/12

$532

Tue 7/2912:20 pmOPO - DCA

2 stops15h 51mBritish Airways

Tue 8/197:32 pmDCA - OPO

2 stops31h 03mBritish Airways

Deal found 6/10

$607

Thu 7/316:00 amOPO - DCA

2 stops20h 38mMultiple Airlines

Mon 8/187:01 pmDCA - OPO

1 stop9h 44mMultiple Airlines

Deal found 6/10

$774

One-way flights from Porto to Reagan-National
Search for one-way flight options from Porto to Reagan-National. Find affordable one-way fares based on user searches. Data last updated June 12, 2025.

Tue 7/81:30 pmOPO - DCA

1 stop24h 27mMultiple Airlines

Deal found 6/10

$456

Sat 10/1810:40 amOPO - DCA

2 stops17h 15mBritish Airways

Deal found 6/12

$538

Wed 7/98:15 amOPO - DCA

2 stops29h 52mAmerican Airlines

Deal found 6/10

$609

Wed 8/69:20 amOPO - DCA

2 stops19h 15mDelta

Deal found 6/11

$662

Tue 7/112:20 pmOPO - DCA

2 stops15h 47mIberia

Deal found 6/10

$728

Tue 7/812:50 pmOPO - DCA

1 stop26h 28mUnited Airlines

Deal found 6/10

$785

Thu 7/2412:10 pmOPO - DCA

1 stop32h 38mAir Canada

Deal found 6/11

$811

Fri 8/296:05 pmOPO - DCA

1 stop30h 21mTAP AIR PORTUGAL

Deal found 6/10

$856

Cheapflights Fare Finder

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

Fly to

Route

Depart

Return

Price

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Mon 6/23

11:25 am-11:33 pm

2 stops17h 08m

Washington, D.C. Reagan-National

Wed 7/9

1:25 pm-10:40 am

2 stops16h 15m

$498

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Wed 10/8

12:20 pm-10:55 pm

2 stops15h 35m

Washington, D.C. Reagan-National

Tue 10/21

5:44 pm-11:40 am

2 stops12h 56m

$514

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Wed 10/8

6:00 am-9:51 pm

2 stops20h 51m

Washington, D.C. Reagan-National

Tue 10/21

11:00 am-11:30 am

2 stops19h 30m

$563

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Tue 7/29

12:20 pm-11:11 pm

2 stops15h 51m

Washington, D.C. Reagan-National

Tue 8/19

7:32 pm-7:35 am

2 stops31h 03m

$607

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Sun 6/22

11:20 am-10:18 am

1 stop27h 58m

Washington, D.C. Reagan-National

Mon 7/7

3:05 pm-6:55 am

1 stop10h 50m

$640

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Thu 7/31

6:00 am-9:38 pm

2 stops20h 38m

Washington, D.C. Reagan-National

Mon 8/18

7:01 pm-9:45 am

1 stop9h 44m

$774

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Wed 10/8

6:10 pm-8:09 am

1 stop18h 59m

Washington, D.C. Reagan-National

Tue 10/21

1:35 pm-8:00 am

2 stops13h 25m

$1,134

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Tue 7/8

1:30 pm-8:57 am

1 stop24h 27m

$456

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Sat 10/18

10:40 am-10:55 pm

2 stops17h 15m

$538

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Wed 7/9

8:15 am-9:07 am

2 stops29h 52m

$609

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 15 results

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

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

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

See what other customers who have flown with Delta, United Airlines and American 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

7,946 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,946 reviews

Delta

8.0

Very good

7,946 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,790 reviews

Delta

8.0

Very good

7,946 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,946 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Air Canada

7.1

Good

9,537 reviews

Delta

8.0

Very good

7,946 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

TAP AIR PORTUGAL

7.1

Good

1,885 reviews

Delta

8.0

Very good

7,946 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

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 $538. American Airlines flights start at $609 while deals on Delta start at $662 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 $337). 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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National Harbor

Springfield

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$456+ 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 7/8. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Porto to Reagan-National with Cheapflights

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2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Porto to Reagan-National

Round-trip from

One-way from

Popular in

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Average price

Find flight deals from Porto to Reagan-National

Cheapest flights from Porto to Reagan-NationalExplore 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 June 12, 2025.

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 June 12, 2025.

Cheapflights Fare Finder

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

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.

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.

Temperature in Reagan-National by month

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

Reviews of airlines servicing Reagan-National

See what other customers who have flown with Delta, United Airlines and American 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.

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?

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

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

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

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

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

Traveling to a place near Porto?

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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 June 12, 2025.