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 16h 33m. 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.

$363+ 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 16, 2025.

Wed 12/2412:30 pmOPO - DCA

2 stops39h 05mUnited Airlines

Sat 1/38:40 pmDCA - OPO

2 stops34h 00mUnited Airlines

Deal found 12/16

$1,014

Wed 12/318:40 pmOPO - DCA

2 stops27h 00mBritish Airways

Sun 1/42:00 pmDCA - OPO

2 stops46h 35mBritish Airways

Deal found 12/15

$1,290

Wed 12/248:55 amOPO - DCA

2 stops14h 10mAir Canada

Sat 1/36:00 amDCA - OPO

2 stops27h 00mAir Canada

Deal found 12/15

$1,304

Wed 12/318:40 pmOPO - DCA

2 stops27h 00mMultiple Airlines

Sun 1/48:10 pmDCA - OPO

1 stop10h 45mMultiple Airlines

Deal found 12/15

$1,894

Wed 12/246:35 pmOPO - DCA

1 stop29h 57mTAP AIR PORTUGAL

Sat 1/38:10 pmDCA - OPO

2 stops15h 50mTAP AIR PORTUGAL

Deal found 12/15

$1,923

Wed 12/316:35 pmOPO - DCA

1 stop19h 53mTAP AIR PORTUGAL

Sun 1/48:10 pmDCA - OPO

1 stop10h 45mTAP AIR PORTUGAL

Deal found 12/15

$3,698

Wed 12/246:00 amOPO - DCA

3 stops45h 46mMultiple Airlines

Sat 1/36:15 amDCA - OPO

3 stops47h 55mMultiple Airlines

Deal found 12/15

$17,009

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 16, 2025.

Thu 3/56:00 amOPO - DCA

2 stops31h 55mUnited Airlines

Mon 3/98:10 pmDCA - OPO

1 stop9h 20mUnited Airlines

Deal found 12/14

$597

Thu 3/56:00 amOPO - DCA

2 stops42h 45mAir Canada

Mon 3/911:05 amDCA - OPO

2 stops21h 45mAir Canada

Deal found 12/14

$604

Thu 1/2911:15 amOPO - DCA

2 stops16h 33mDelta

Thu 2/511:11 amDCA - OPO

2 stops18h 14mDelta

Deal found 12/16

$606

Thu 1/292:00 pmOPO - DCA

2 stops23h 36mTAP AIR PORTUGAL

Thu 2/59:07 amDCA - OPO

1 stop21h 43mTAP AIR PORTUGAL

Deal found 12/16

$1,068

Fri 1/305:00 amOPO - DCA

2 stops22h 48mDelta

Fri 2/611:11 amDCA - OPO

2 stops18h 19mDelta

Deal found 12/15

$606

Mon 1/1211:15 amOPO - DCA

2 stops16h 33mDelta

Mon 1/1911:10 amDCA - OPO

2 stops18h 20mDelta

Deal found 12/15

$630

Fri 1/308:05 pmOPO - DCA

2 stops30h 40mTAP AIR PORTUGAL

Fri 2/68:10 pmDCA - OPO

1 stop10h 50mTAP AIR PORTUGAL

Deal found 12/15

$1,084

Mon 1/126:40 pmOPO - DCA

1 stop29h 52mTAP AIR PORTUGAL

Mon 1/193:15 pmDCA - OPO

1 stop15h 35mTAP AIR PORTUGAL

Deal found 12/15

$1,162

Last-minute flights from Porto to Reagan-National
Discover last-minute flight deals from Porto to Reagan-National. Data last updated December 16, 2025 and is based on user searches.

Wed 12/2412:30 pmOPO - DCA

2 stops39h 05mUnited Airlines

Sat 1/38:40 pmDCA - OPO

2 stops34h 00mUnited Airlines

Deal found 12/16

$1,014

Wed 12/248:55 amOPO - DCA

2 stops14h 10mAir Canada

Sat 1/36:00 amDCA - OPO

2 stops27h 00mAir Canada

Deal found 12/15

$1,304

Wed 12/318:40 pmOPO - DCA

2 stops27h 00mBritish Airways

Sun 1/42:00 pmDCA - OPO

2 stops46h 35mBritish Airways

Deal found 12/15

$1,290

Wed 12/318:40 pmOPO - DCA

2 stops27h 00mMultiple Airlines

Sun 1/48:10 pmDCA - OPO

1 stop10h 45mMultiple Airlines

Deal found 12/15

$1,894

Mon 1/1211:15 amOPO - DCA

2 stops16h 33mDelta

Mon 1/1911:10 amDCA - OPO

2 stops18h 20mDelta

Deal found 12/15

$630

Mon 1/126:40 pmOPO - DCA

1 stop29h 52mTAP AIR PORTUGAL

Mon 1/193:15 pmDCA - OPO

1 stop15h 35mTAP AIR PORTUGAL

Deal found 12/15

$1,162

Thu 1/156:00 amOPO - DCA

2 stops31h 55mAir Canada

Wed 1/284:15 pmDCA - OPO

2 stops16h 00mAir Canada

Deal found 12/15

$596

Thu 1/156:35 amOPO - DCA

2 stops20h 21mMultiple Airlines

Wed 1/2811:05 amDCA - OPO

3 stops25h 55mMultiple Airlines

Deal found 12/15

$724

Thu 1/2911:15 amOPO - DCA

2 stops16h 33mDelta

Thu 2/511:11 amDCA - OPO

2 stops18h 14mDelta

Deal found 12/16

$606

Thu 1/292:00 pmOPO - DCA

2 stops23h 36mTAP AIR PORTUGAL

Thu 2/59:07 amDCA - OPO

1 stop21h 43mTAP AIR PORTUGAL

Deal found 12/16

$1,068

Fri 1/308:05 pmOPO - DCA

2 stops30h 40mTAP AIR PORTUGAL

Fri 2/68:10 pmDCA - OPO

1 stop10h 50mTAP AIR PORTUGAL

Deal found 12/15

$1,084

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 16, 2025.

Tue 3/248:20 amOPO - DCA

2 stops17h 56mIberia

Deal found 12/16

$363

Sun 3/294:40 pmOPO - DCA

2 stops34h 36mIberia

Deal found 12/15

$377

Mon 3/2312:25 pmOPO - DCA

2 stops24h 20mAmerican Airlines

Deal found 12/16

$391

Sun 3/2212:25 pmOPO - DCA

2 stops37h 51mAmerican Airlines

Deal found 12/16

$401

Fri 3/278:20 amOPO - DCA

2 stops36h 09mAmerican Airlines

Deal found 12/16

$421

Thu 3/2612:25 pmOPO - DCA

2 stops56h 04mAmerican Airlines

Deal found 12/16

$432

Sat 3/217:50 pmOPO - DCA

2 stops26h 58mBritish Airways

Deal found 12/16

$509

Sun 3/2910:00 amOPO - DCA

3 stops38h 01mMultiple Airlines

Deal found 12/15

$531

Wed 3/258:15 amOPO - DCA

3 stops31h 19mMultiple Airlines

Deal found 12/16

$563

Fri 3/277:05 pmOPO - DCA

3 stops27h 36mMultiple Airlines

Deal found 12/16

$633

Mon 3/232:00 pmOPO - DCA

3 stops25h 34mMultiple Airlines

Deal found 12/16

$651

Sat 3/216:05 amOPO - DCA

3 stops20h 46mMultiple Airlines

Deal found 12/16

$664

Find flight deals from Porto to Reagan-National

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$596 (Gotogate)
One-way from	$363 (Iberia)
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

Search Deals

One-way flight from Porto to Washington, D.C. Reagan-National

Search Deals

Highest demand for flights based on searches. 12% potential increase in price ($94 potential increase over avg. RT price).

Search Deals

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

Search Deals

Average for round-trip flights in December 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 3/5

6:00 am-8:55 am

2 stops31h 55m

Washington, D.C. Reagan-National

Mon 3/9

8:10 pm-9:30 am

1 stop9h 20m

$597

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Thu 3/5

6:00 am-7:45 pm

2 stops42h 45m

Washington, D.C. Reagan-National

Mon 3/9

11:05 am-12:50 pm

2 stops21h 45m

$604

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Thu 1/29

11:15 am-10:48 pm

2 stops16h 33m

Washington, D.C. Reagan-National

Thu 2/5

11:11 am-10:25 am

2 stops18h 14m

$606

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Fri 1/30

5:00 am-10:48 pm

2 stops22h 48m

Washington, D.C. Reagan-National

Fri 2/6

11:11 am-10:30 am

2 stops18h 19m

$606

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Mon 1/12

11:15 am-10:48 pm

2 stops16h 33m

Washington, D.C. Reagan-National

Mon 1/19

11:10 am-10:30 am

2 stops18h 20m

$630

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Thu 1/29

2:00 pm-8:36 am

2 stops23h 36m

Washington, D.C. Reagan-National

Thu 2/5

9:07 am-11:50 am

1 stop21h 43m

$1,068

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Fri 1/30

8:05 pm-9:45 pm

2 stops30h 40m

Washington, D.C. Reagan-National

Fri 2/6

8:10 pm-12:00 pm

1 stop10h 50m

$1,084

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Mon 1/12

6:40 pm-7:32 pm

1 stop29h 52m

Washington, D.C. Reagan-National

Mon 1/19

3:15 pm-11:50 am

1 stop15h 35m

$1,162

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Tue 3/24

8:20 am-10:16 pm

2 stops17h 56m

$363

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Sun 3/29

4:40 pm-10:16 pm

2 stops34h 36m

$377

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

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 16h 33m. 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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$363+ 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 3/24. 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 16, 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 16, 2025.

Find flight deals from Porto to Reagan-National

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Round-trip from

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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 December 16, 2025.