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 36m. 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.

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.

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).

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.

$362+ Flights from Porto to Washington, D.C. Reagan-National Airport

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Cheap flight deals from Porto to Reagan-National

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$521 (Delta)
One-way from	$367 (American Airlines)
Popular in	August
Cheapest in	June
Average price	$574

Provider with most accurate pricing for Porto-Washington, D.C. (WAS) flight deals.

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Provider most trusted by Cheapflights users for Porto-Washington, D.C. (WAS) 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 ($37 potential increase over avg. RT price).

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Cheapest flight prices on average. 1% potential price decrease ($11 potential savings vs. average RT price).

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Average for round-trip flights in January 2026

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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 January 8, 2026.

Thu 4/1612:25 pmOPO - DCA

2 stops27h 19mAmerican Airlines

Sun 4/191:29 pmDCA - OPO

2 stops17h 16mAmerican Airlines

Deal found 1/7

$535

Mon 6/158:20 amOPO - DCA

2 stops29h 40mAmerican Airlines

Sun 7/195:00 pmDCA - OPO

2 stops18h 00mAmerican Airlines

Deal found 1/6

$536

Wed 5/68:20 amOPO - DCA

2 stops18h 55mAmerican Airlines

Wed 5/131:25 pmDCA - OPO

2 stops13h 15mAmerican Airlines

Deal found 1/7

$545

Sat 2/78:20 amOPO - DCA

2 stops19h 27mIberia

Sat 2/143:21 pmDCA - OPO

2 stops15h 24mIberia

Deal found 1/8

$546

Wed 5/68:20 pmOPO - DCA

2 stops25h 09mBritish Airways

Thu 5/144:43 pmDCA - OPO

2 stops22h 37mBritish Airways

Deal found 1/7

$554

Sun 5/38:20 amOPO - DCA

2 stops19h 40mIberia

Wed 5/131:54 pmDCA - OPO

2 stops16h 51mIberia

Deal found 1/7

$580

Mon 5/46:00 amOPO - DCA

2 stops21h 43mUnited Airlines

Sun 5/105:00 pmDCA - OPO

1 stop11h 45mUnited Airlines

Deal found 1/7

$596

Tue 5/58:20 amOPO - DCA

2 stops18h 57mIberia

Mon 5/111:54 pmDCA - OPO

2 stops25h 06mIberia

Deal found 1/7

$598

Thu 9/312:25 pmOPO - DCA

1 stop15h 47mDelta

Mon 9/141:30 pmDCA - OPO

2 stops16h 25mDelta

Deal found 1/7

$608

Thu 9/312:15 pmOPO - DCA

1 stop14h 33mUnited Airlines

Mon 9/144:30 pmDCA - OPO

1 stop9h 25mUnited Airlines

Deal found 1/7

$617

Thu 4/1612:35 pmOPO - DCA

1 stop11h 56mUnited Airlines

Sun 4/196:00 pmDCA - OPO

1 stop10h 45mUnited Airlines

Deal found 1/7

$618

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 January 8, 2026.

Mon 6/158:20 amOPO - DCA

2 stops28h 26mAmerican Airlines

Sun 7/196:15 amDCA - OPO

2 stops20h 25mAmerican Airlines

Deal found 1/7

$536

Sat 2/78:20 amOPO - DCA

2 stops19h 27mIberia

Sat 2/143:21 pmDCA - OPO

2 stops15h 24mIberia

Deal found 1/8

$546

Wed 5/68:20 pmOPO - DCA

2 stops25h 09mBritish Airways

Thu 5/144:43 pmDCA - OPO

2 stops22h 37mBritish Airways

Deal found 1/7

$554

Wed 5/68:20 pmOPO - DCA

2 stops25h 25mBritish Airways

Mon 5/114:43 pmDCA - OPO

2 stops22h 07mBritish Airways

Deal found 1/7

$554

Sun 5/38:20 amOPO - DCA

2 stops19h 40mIberia

Sun 5/101:54 pmDCA - OPO

2 stops16h 51mIberia

Deal found 1/7

$580

Thu 5/77:55 pmOPO - DCA

2 stops25h 34mBritish Airways

Sun 5/101:29 pmDCA - OPO

2 stops25h 51mBritish Airways

Deal found 1/7

$554

Mon 5/48:20 amOPO - DCA

2 stops18h 55mIberia

Sun 5/101:54 pmDCA - OPO

2 stops16h 51mIberia

Deal found 1/7

$580

Wed 5/68:20 pmOPO - DCA

2 stops25h 25mBritish Airways

Tue 5/125:59 pmDCA - OPO

2 stops20h 31mBritish Airways

Deal found 1/7

$554

Thu 5/78:20 amOPO - DCA

2 stops18h 55mIberia

Fri 5/155:59 pmDCA - OPO

2 stops21h 01mIberia

Deal found 1/7

$580

Thu 5/77:55 pmOPO - DCA

2 stops25h 50mBritish Airways

Mon 5/114:43 pmDCA - OPO

2 stops22h 07mBritish Airways

Deal found 1/7

$554

Thu 5/77:55 pmOPO - DCA

2 stops25h 50mBritish Airways

Tue 5/125:59 pmDCA - OPO

2 stops20h 31mBritish Airways

Deal found 1/7

$554

Thu 5/77:55 pmOPO - DCA

2 stops25h 34mBritish Airways

Thu 5/144:43 pmDCA - OPO

2 stops22h 37mBritish Airways

Deal found 1/7

$554

Last-minute flights from Porto to Reagan-National
Discover last-minute flight deals from Porto to Reagan-National. Data last updated January 8, 2026 and is based on user searches.

Thu 1/158:20 amOPO - DCA

2 stops15h 36mAmerican Airlines

Wed 1/281:35 pmDCA - OPO

2 stops13h 05mAmerican Airlines

Deal found 1/7

$695

Tue 2/38:00 pmOPO - DCA

2 stops27h 49mTAP AIR PORTUGAL

Tue 2/1012:59 pmDCA - OPO

2 stops13h 56mTAP AIR PORTUGAL

Deal found 1/7

$1,154

Sat 2/78:20 amOPO - DCA

2 stops19h 27mIberia

Sat 2/143:21 pmDCA - OPO

2 stops15h 24mIberia

Deal found 1/8

$546

Sat 2/711:00 amOPO - DCA

2 stops26h 36mTAP AIR PORTUGAL

Sat 2/148:10 pmDCA - OPO

1 stop12h 00mTAP AIR PORTUGAL

Deal found 1/8

$1,046

Mon 2/98:20 amOPO - DCA

2 stops15h 36mMultiple Airlines

Sat 2/144:34 pmDCA - OPO

2 stops14h 11mMultiple Airlines

Deal found 1/7

$728

Mon 2/96:40 pmOPO - DCA

1 stop18h 52mTAP AIR PORTUGAL

Sat 2/148:10 pmDCA - OPO

1 stop12h 00mTAP AIR PORTUGAL

Deal found 1/7

$1,170

Sun 2/155:00 amOPO - DCA

2 stops22h 08mDelta

Fri 2/207:35 pmDCA - OPO

2 stops33h 55mDelta

Deal found 1/7

$653

Sun 2/2212:30 pmOPO - DCA

2 stops50h 51mUnited Airlines

Sun 3/14:10 pmDCA - OPO

1 stop12h 20mUnited Airlines

Deal found 1/8

$778

Sun 2/228:20 amOPO - DCA

2 stops17h 28mMultiple Airlines

Sun 3/15:00 pmDCA - OPO

2 stops13h 45mMultiple Airlines

Deal found 1/8

$797

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 January 8, 2026.

Wed 3/118:20 amOPO - DCA

2 stops17h 56mIberia

Deal found 1/8

$362

Wed 3/118:20 amOPO - DCA

2 stops17h 56mAmerican Airlines

Deal found 1/8

$367

Thu 3/128:20 amOPO - DCA

2 stops17h 56mAmerican Airlines

Deal found 1/8

$391

Mon 6/298:20 amOPO - DCA

2 stops18h 10mIberia

Deal found 1/7

$435

Fri 6/125:20 pmOPO - DCA

3 stops33h 10mMultiple Airlines

Deal found 1/8

$477

Fri 6/128:20 amOPO - DCA

2 stops42h 10mIberia

Deal found 1/8

$527

Sun 2/158:20 amOPO - DCA

2 stops18h 40mBritish Airways

Deal found 1/7

$558

Fri 6/1212:25 pmOPO - DCA

1 stop15h 47mDelta

Deal found 1/8

$607

Mon 6/296:00 amOPO - DCA

3 stops18h 18mMultiple Airlines

Deal found 1/7

$684

Sun 2/158:20 amOPO - DCA

2 stops15h 13mIberia

Deal found 1/7

$688

Wed 3/116:35 pmOPO - DCA

1 stop17h 54mTAP AIR PORTUGAL

Deal found 1/8

$766

Mon 6/2912:15 pmOPO - DCA

1 stop14h 33mAir Canada

Deal found 1/7

$830

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 6/15

8:20 am-7:46 am

2 stops28h 26m

Washington, D.C. Reagan-National

Sun 7/19

6:15 am-7:40 am

2 stops20h 25m

$536

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Sat 2/7

8:20 am-10:47 pm

2 stops19h 27m

Washington, D.C. Reagan-National

Sat 2/14

3:21 pm-11:45 am

2 stops15h 24m

$546

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Wed 5/6

8:20 pm-4:29 pm

2 stops25h 09m

Washington, D.C. Reagan-National

Thu 5/14

4:43 pm-8:20 pm

2 stops22h 37m

$554

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Wed 5/6

8:20 pm-4:45 pm

2 stops25h 25m

Washington, D.C. Reagan-National

Mon 5/11

4:43 pm-7:50 pm

2 stops22h 07m

$554

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Thu 5/7

7:55 pm-4:29 pm

2 stops25h 34m

Washington, D.C. Reagan-National

Sun 5/10

1:29 pm-8:20 pm

2 stops25h 51m

$554

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Wed 5/6

8:20 pm-4:45 pm

2 stops25h 25m

Washington, D.C. Reagan-National

Tue 5/12

5:59 pm-7:30 pm

2 stops20h 31m

$554

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Thu 5/7

7:55 pm-4:45 pm

2 stops25h 50m

Washington, D.C. Reagan-National

Mon 5/11

4:43 pm-7:50 pm

2 stops22h 07m

$554

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Thu 5/7

7:55 pm-4:45 pm

2 stops25h 50m

Washington, D.C. Reagan-National

Tue 5/12

5:59 pm-7:30 pm

2 stops20h 31m

$554

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Thu 5/7

7:55 pm-4:29 pm

2 stops25h 34m

Washington, D.C. Reagan-National

Thu 5/14

4:43 pm-8:20 pm

2 stops22h 37m

$554

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Sun 5/3

8:20 am-11:00 pm

2 stops19h 40m

Washington, D.C. Reagan-National

Sun 5/10

1:54 pm-11:45 am

2 stops16h 51m

$580

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/8

Showing 1-10 of 24 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.

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.
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 36m. 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.

See more FAQs

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$362+ 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 3/11. 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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Cheap flight deals from Porto to Reagan-National

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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 January 8, 2026.

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 January 8, 2026.

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.

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?

How long is the flight from Porto to Washington, D.C. Reagan-National Airport?

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?

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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 January 8, 2026.