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.

$350+ Flights from Porto to Washington, D.C. Reagan-National Airport

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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 November 25, 2025.

Sun 12/712:30 pmOPO - DCA

2 stops33h 26mUnited Airlines

Wed 1/145:00 pmDCA - OPO

2 stops37h 40mUnited Airlines

Deal found 11/24

$565

Tue 12/2311:25 amOPO - DCA

2 stops16h 25mKLM

Tue 1/67:30 pmDCA - OPO

2 stops14h 55mKLM

Deal found 11/23

$783

Sun 12/76:35 pmOPO - DCA

1 stop32h 20mTAP AIR PORTUGAL

Wed 1/1411:55 amDCA - OPO

2 stops18h 10mTAP AIR PORTUGAL

Deal found 11/24

$1,077

Wed 12/246:00 amOPO - DCA

2 stops17h 21mDelta

Sat 1/31:40 pmDCA - OPO

2 stops15h 50mDelta

Deal found 11/23

$1,151

Tue 11/256:00 amOPO - DCA

2 stops31h 55mAir Canada

Fri 11/284:10 pmDCA - OPO

2 stops14h 55mAir Canada

Deal found 11/23

$1,312

Wed 12/246:35 pmOPO - DCA

1 stop19h 53mTAP AIR PORTUGAL

Sat 1/39:10 amDCA - OPO

2 stops23h 50mTAP AIR PORTUGAL

Deal found 11/23

$1,342

Tue 12/238:00 pmOPO - DCA

2 stops29h 50mTAP AIR PORTUGAL

Tue 1/611:10 amDCA - OPO

1 stop19h 40mTAP AIR PORTUGAL

Deal found 11/23

$1,787

Tue 11/256:40 pmOPO - DCA

1 stop31h 54mTAP AIR PORTUGAL

Fri 11/286:19 pmDCA - OPO

1 stop12h 41mTAP AIR PORTUGAL

Deal found 11/23

$2,122

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 November 25, 2025.

Thu 1/228:20 amOPO - DCA

2 stops15h 36mAmerican Airlines

Sun 1/255:45 pmDCA - OPO

2 stops17h 15mAmerican Airlines

Deal found 11/24

$528

Thu 1/156:00 amOPO - DCA

2 stops31h 55mAir Canada

Wed 1/2811:05 amDCA - OPO

2 stops19h 10mAir Canada

Deal found 11/23

$553

Sun 12/712:30 pmOPO - DCA

2 stops33h 26mUnited Airlines

Wed 1/145:00 pmDCA - OPO

2 stops37h 40mUnited Airlines

Deal found 11/24

$565

Tue 12/2311:25 amOPO - DCA

2 stops16h 25mKLM

Tue 1/67:30 pmDCA - OPO

2 stops14h 55mKLM

Deal found 11/23

$783

Thu 1/156:00 amOPO - DCA

3 stops33h 23mMultiple Airlines

Wed 1/286:00 amDCA - OPO

2 stops24h 40mMultiple Airlines

Deal found 11/23

$844

Thu 1/158:20 amOPO - DCA

2 stops15h 36mAmerican Airlines

Wed 1/281:59 pmDCA - OPO

2 stops12h 41mAmerican Airlines

Deal found 11/24

$528

Sun 12/76:35 pmOPO - DCA

1 stop32h 20mTAP AIR PORTUGAL

Wed 1/1411:55 amDCA - OPO

2 stops18h 10mTAP AIR PORTUGAL

Deal found 11/24

$1,077

Thu 1/226:00 amOPO - DCA

2 stops41h 05mAir Canada

Sun 1/254:15 pmDCA - OPO

2 stops38h 00mAir Canada

Deal found 11/22

$563

Wed 12/246:00 amOPO - DCA

2 stops17h 21mDelta

Sat 1/31:40 pmDCA - OPO

2 stops15h 50mDelta

Deal found 11/23

$1,151

Thu 1/229:00 amOPO - DCA

2 stops17h 45mTAP AIR PORTUGAL

Sun 1/253:15 pmDCA - OPO

1 stop15h 40mTAP AIR PORTUGAL

Deal found 11/23

$1,088

Last-minute flights from Porto to Reagan-National
Discover last-minute flight deals from Porto to Reagan-National. Data last updated November 25, 2025 and is based on user searches.

Tue 11/256:00 amOPO - DCA

2 stops31h 55mAir Canada

Fri 11/284:10 pmDCA - OPO

2 stops14h 55mAir Canada

Deal found 11/23

$1,312

Tue 11/256:40 pmOPO - DCA

1 stop31h 54mTAP AIR PORTUGAL

Fri 11/286:19 pmDCA - OPO

1 stop12h 41mTAP AIR PORTUGAL

Deal found 11/23

$2,122

Sun 12/712:30 pmOPO - DCA

2 stops33h 26mUnited Airlines

Wed 1/145:00 pmDCA - OPO

2 stops37h 40mUnited Airlines

Deal found 11/24

$565

Sun 12/76:35 pmOPO - DCA

1 stop32h 20mTAP AIR PORTUGAL

Wed 1/1411:55 amDCA - OPO

2 stops18h 10mTAP AIR PORTUGAL

Deal found 11/24

$1,077

Tue 12/2311:25 amOPO - DCA

2 stops16h 25mKLM

Tue 1/67:30 pmDCA - OPO

2 stops14h 55mKLM

Deal found 11/23

$783

Tue 12/238:00 pmOPO - DCA

2 stops29h 50mTAP AIR PORTUGAL

Tue 1/611:10 amDCA - OPO

1 stop19h 40mTAP AIR PORTUGAL

Deal found 11/23

$1,787

Wed 12/246:00 amOPO - DCA

2 stops17h 21mDelta

Sat 1/31:40 pmDCA - OPO

2 stops15h 50mDelta

Deal found 11/23

$1,151

Wed 12/246:35 pmOPO - DCA

1 stop19h 53mTAP AIR PORTUGAL

Sat 1/39:10 amDCA - OPO

2 stops23h 50mTAP AIR PORTUGAL

Deal found 11/23

$1,342

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 November 25, 2025.

Thu 3/128:20 amOPO - DCA

2 stops14h 53mIberia

Deal found 11/23

$350

Sat 1/108:40 pmOPO - DCA

2 stops42h 23mAmerican Airlines

Deal found 11/23

$538

Fri 1/92:20 pmOPO - DCA

3 stops32h 45mMultiple Airlines

Deal found 11/23

$545

Sat 1/108:10 amOPO - DCA

3 stops56h 55mMultiple Airlines

Deal found 11/24

$548

Thu 3/126:10 pmOPO - DCA

3 stops32h 46mMultiple Airlines

Deal found 11/23

$577

Fri 1/96:05 pmOPO - DCA

2 stops32h 19mBritish Airways

Deal found 11/23

$620

Fri 1/94:40 pmOPO - DCA

2 stops47h 19mAmerican Airlines

Deal found 11/23

$630

Sat 1/108:40 pmOPO - DCA

2 stops27h 14mIberia

Deal found 11/24

$673

Wed 12/311:35 amOPO - DCA

2 stops16h 22mMultiple Airlines

Deal found 11/23

$692

Sat 1/106:35 pmOPO - DCA

1 stop18h 57mTAP AIR PORTUGAL

Deal found 11/24

$722

Cheap flight deals from Porto to Reagan-National

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$528 (American Airlines)
One-way from	$350 (Travelocity)
Popular in	September
Cheapest in	May
Average price	$695

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

Search Deals

Highest demand for flights based on searches. 5% potential increase in price ($36 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($13 potential savings vs. average RT price).

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Average for round-trip flights in November 2025

Search Deals

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

Thu 1/22

8:20 am-6:56 pm

2 stops15h 36m

Washington, D.C. Reagan-National

Sun 1/25

5:45 pm-4:00 pm

2 stops17h 15m

$528

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Thu 1/15

8:20 am-6:56 pm

2 stops15h 36m

Washington, D.C. Reagan-National

Wed 1/28

1:59 pm-7:40 am

2 stops12h 41m

$528

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Thu 1/15

6:00 am-8:55 am

2 stops31h 55m

Washington, D.C. Reagan-National

Wed 1/28

11:05 am-11:15 am

2 stops19h 10m

$553

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Thu 1/22

6:00 am-6:05 pm

2 stops41h 05m

Washington, D.C. Reagan-National

Sun 1/25

4:15 pm-11:15 am

2 stops38h 00m

$563

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Sun 12/7

12:30 pm-4:56 pm

2 stops33h 26m

Washington, D.C. Reagan-National

Wed 1/14

5:00 pm-11:40 am

2 stops37h 40m

$565

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Tue 12/23

11:25 am-10:50 pm

2 stops16h 25m

Washington, D.C. Reagan-National

Tue 1/6

7:30 pm-3:25 pm

2 stops14h 55m

$783

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Thu 1/15

6:00 am-10:23 am

3 stops33h 23m

Washington, D.C. Reagan-National

Wed 1/28

6:00 am-11:40 am

2 stops24h 40m

$844

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Sun 12/7

6:35 pm-9:55 pm

1 stop32h 20m

Washington, D.C. Reagan-National

Wed 1/14

11:55 am-11:05 am

2 stops18h 10m

$1,077

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Thu 1/22

9:00 am-9:45 pm

2 stops17h 45m

Washington, D.C. Reagan-National

Sun 1/25

3:15 pm-11:55 am

1 stop15h 40m

$1,088

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Wed 12/24

6:00 am-6:21 pm

2 stops17h 21m

Washington, D.C. Reagan-National

Sat 1/3

1:40 pm-10:30 am

2 stops15h 50m

$1,151

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/23

Showing 1-10 of 20 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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$350+ 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 3/12. 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

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

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 November 25, 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 November 25, 2025.

Cheap flight deals from Porto to Reagan-National

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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 November 25, 2025.