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.

$509+ Flights from Porto to Washington, D.C. Reagan-National Airport

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Cheap 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 December 23, 2025.

Wed 12/248:20 amOPO - DCA

2 stops37h 53mMultiple Airlines

Sat 1/31:44 pmDCA - OPO

2 stops17h 01mMultiple Airlines

Deal found 12/21

$769

Wed 12/246:35 pmOPO - DCA

1 stop29h 57mTAP AIR PORTUGAL

Sat 1/38:10 pmDCA - OPO

2 stops16h 55mTAP AIR PORTUGAL

Deal found 12/21

$1,396

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 December 23, 2025.

Thu 1/156:35 amOPO - DCA

2 stops21h 13mDelta

Wed 1/2811:10 amDCA - OPO

2 stops18h 20mDelta

Deal found 12/21

$521

Thu 1/158:20 amOPO - DCA

2 stops15h 36mAmerican Airlines

Wed 1/2811:25 amDCA - OPO

2 stops15h 15mAmerican Airlines

Deal found 12/22

$535

Wed 2/186:00 amOPO - DCA

2 stops42h 59mUnited Airlines

Sun 2/224:10 pmDCA - OPO

1 stop12h 20mUnited Airlines

Deal found 12/21

$596

Thu 1/156:35 amOPO - DCA

3 stops21h 13mMultiple Airlines

Wed 1/2811:10 amDCA - OPO

3 stops23h 05mMultiple Airlines

Deal found 12/21

$666

Sun 1/185:00 amOPO - DCA

2 stops22h 48mDelta

Sun 1/2511:10 amDCA - OPO

2 stops18h 20mDelta

Deal found 12/21

$521

Sun 2/18:20 amOPO - DCA

2 stops15h 34mAmerican Airlines

Thu 2/51:59 pmDCA - OPO

2 stops12h 41mAmerican Airlines

Deal found 12/21

$727

Last-minute flights from Porto to Reagan-National
Discover last-minute flight deals from Porto to Reagan-National. Data last updated December 23, 2025 and is based on user searches.

Wed 12/248:20 amOPO - DCA

2 stops37h 53mMultiple Airlines

Sat 1/31:44 pmDCA - OPO

2 stops17h 01mMultiple Airlines

Deal found 12/21

$769

Thu 1/156:35 amOPO - DCA

2 stops21h 13mDelta

Wed 1/2811:10 amDCA - OPO

2 stops18h 20mDelta

Deal found 12/22

$521

Thu 1/158:20 amOPO - DCA

2 stops15h 36mAmerican Airlines

Wed 1/2811:25 amDCA - OPO

2 stops15h 15mAmerican Airlines

Deal found 12/22

$535

Thu 1/156:35 amOPO - DCA

3 stops21h 13mMultiple Airlines

Wed 1/2811:10 amDCA - OPO

3 stops23h 05mMultiple Airlines

Deal found 12/21

$666

Thu 1/156:35 pmOPO - DCA

1 stop32h 17mTAP AIR PORTUGAL

Wed 1/2812:59 pmDCA - OPO

1 stop17h 56mTAP AIR PORTUGAL

Deal found 12/21

$1,163

Sun 1/185:00 amOPO - DCA

3 stops19h 45mMultiple Airlines

Sun 1/256:50 pmDCA - OPO

3 stops32h 20mMultiple Airlines

Deal found 12/21

$933

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 December 23, 2025.

Sun 2/112:40 pmOPO - DCA

2 stops24h 56mMultiple Airlines

Deal found 12/22

$509

Sat 1/108:55 amOPO - DCA

2 stops28h 37mTAP AIR PORTUGAL

Deal found 12/22

$1,409

Find 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	$509 (oojo)
Popular in	July
Cheapest in	May
Average price	$626

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. 12% potential increase in price ($94 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($13 potential savings vs. average RT price).

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Average for round-trip flights in December 2025

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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 1/15

6:35 am-10:48 pm

2 stops21h 13m

Washington, D.C. Reagan-National

Wed 1/28

11:10 am-10:30 am

2 stops18h 20m

$521

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Sun 1/18

5:00 am-10:48 pm

2 stops22h 48m

Washington, D.C. Reagan-National

Sun 1/25

11:10 am-10:30 am

2 stops18h 20m

$521

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

11:25 am-7:40 am

2 stops15h 15m

$535

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Wed 2/18

6:00 am-7:59 pm

2 stops42h 59m

Washington, D.C. Reagan-National

Sun 2/22

4:10 pm-9:30 am

1 stop12h 20m

$596

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Thu 1/15

6:35 am-10:48 pm

3 stops21h 13m

Washington, D.C. Reagan-National

Wed 1/28

11:10 am-3:15 pm

3 stops23h 05m

$666

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Sun 2/1

8:20 am-6:54 pm

2 stops15h 34m

Washington, D.C. Reagan-National

Thu 2/5

1:59 pm-7:40 am

2 stops12h 41m

$727

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Sun 2/1

12:40 pm-8:36 am

2 stops24h 56m

$509

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Sat 1/10

8:55 am-8:32 am

2 stops28h 37m

$1,409

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/22

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.

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$509+ 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 2/1. 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

Cheap 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 December 23, 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 December 23, 2025.

Find flight deals from Porto to Reagan-National

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

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?

Traveling to a place near Washington, D.C. Reagan-National Airport?

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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 December 23, 2025.