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 18h 52m. 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.

$347+ 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 2, 2025.

Mon 12/298:20 amOPO - DCA

2 stops15h 22mMultiple Airlines

Mon 1/58:46 pmDCA - OPO

2 stops39h 59mMultiple Airlines

Deal found 12/1

$829

Wed 12/246:00 amOPO - DCA

2 stops31h 55mAir Canada

Sat 1/36:00 amDCA - OPO

2 stops25h 05mAir Canada

Deal found 11/30

$1,330

Wed 12/248:00 pmOPO - DCA

2 stops29h 50mTAP AIR PORTUGAL

Sat 1/39:10 amDCA - OPO

2 stops19h 40mTAP AIR PORTUGAL

Deal found 12/2

$1,338

Sun 12/212:50 pmOPO - DCA

2 stops35h 00mTAP AIR PORTUGAL

Sun 12/288:10 pmDCA - OPO

1 stop10h 45mTAP AIR PORTUGAL

Deal found 11/30

$1,425

Wed 12/246:00 amOPO - DCA

2 stops17h 21mDelta

Sat 1/35:00 pmDCA - OPO

2 stops17h 25mDelta

Deal found 12/1

$1,439

Mon 12/296:40 pmOPO - DCA

1 stop19h 48mTAP AIR PORTUGAL

Mon 1/56:05 pmDCA - OPO

1 stop12h 45mTAP AIR PORTUGAL

Deal found 12/1

$1,866

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 2, 2025.

Thu 1/156:00 amOPO - DCA

2 stops31h 55mAir Canada

Wed 1/2811:05 amDCA - OPO

2 stops19h 10mAir Canada

Deal found 12/1

$503

Thu 1/226:00 amOPO - DCA

2 stops42h 45mUnited Airlines

Sun 1/252:00 pmDCA - OPO

2 stops16h 40mUnited Airlines

Deal found 11/30

$512

Wed 1/146:00 amOPO - DCA

2 stops18h 52mDelta

Wed 1/2111:10 amDCA - OPO

2 stops18h 20mDelta

Deal found 11/29

$517

Mon 12/298:20 amOPO - DCA

2 stops15h 22mMultiple Airlines

Mon 1/58:46 pmDCA - OPO

2 stops39h 59mMultiple Airlines

Deal found 12/1

$829

Thu 1/226:00 amOPO - DCA

2 stops42h 45mAir Canada

Sun 1/2511:05 amDCA - OPO

2 stops19h 05mAir Canada

Deal found 11/29

$508

Thu 3/512:35 pmOPO - DCA

1 stop12h 00mUnited Airlines

Mon 3/98:10 pmDCA - OPO

1 stop9h 20mUnited Airlines

Deal found 12/1

$533

Wed 1/148:55 amOPO - DCA

2 stops14h 54mTAP AIR PORTUGAL

Wed 1/216:00 pmDCA - OPO

1 stop12h 55mTAP AIR PORTUGAL

Deal found 11/29

$1,080

Thu 3/56:00 amOPO - DCA

2 stops42h 45mAir Canada

Mon 3/911:05 amDCA - OPO

2 stops20h 35mAir Canada

Deal found 12/1

$516

Fri 3/66:00 amOPO - DCA

2 stops31h 55mAir Canada

Wed 5/206:00 amDCA - OPO

2 stops24h 25mAir Canada

Deal found 12/1

$720

Wed 1/1410:05 pmOPO - DCA

3 stops25h 00mMultiple Airlines

Wed 1/2111:05 amDCA - OPO

2 stops17h 45mMultiple Airlines

Deal found 11/29

$882

Thu 1/229:00 amOPO - DCA

2 stops14h 49mTAP AIR PORTUGAL

Sun 1/253:15 pmDCA - OPO

1 stop15h 40mTAP AIR PORTUGAL

Deal found 11/29

$1,095

Last-minute flights from Porto to Reagan-National
Discover last-minute flight deals from Porto to Reagan-National. Data last updated December 2, 2025 and is based on user searches.

Mon 12/298:20 amOPO - DCA

2 stops15h 22mMultiple Airlines

Mon 1/58:46 pmDCA - OPO

2 stops39h 59mMultiple Airlines

Deal found 12/1

$829

Wed 1/146:00 amOPO - DCA

2 stops18h 52mDelta

Wed 1/2111:10 amDCA - OPO

2 stops18h 20mDelta

Deal found 11/29

$517

Wed 1/1410:05 pmOPO - DCA

3 stops25h 00mMultiple Airlines

Wed 1/2111:05 amDCA - OPO

2 stops17h 45mMultiple Airlines

Deal found 11/29

$882

Wed 1/148:55 amOPO - DCA

2 stops14h 54mTAP AIR PORTUGAL

Wed 1/216:00 pmDCA - OPO

1 stop12h 55mTAP AIR PORTUGAL

Deal found 11/29

$1,080

Thu 1/156:00 amOPO - DCA

2 stops31h 55mAir Canada

Wed 1/2811:05 amDCA - OPO

2 stops19h 10mAir Canada

Deal found 12/1

$503

Thu 1/226:00 amOPO - DCA

2 stops42h 45mAir Canada

Sun 1/2511:05 amDCA - OPO

2 stops19h 05mAir Canada

Deal found 11/29

$508

Thu 1/226:00 amOPO - DCA

2 stops42h 45mUnited Airlines

Sun 1/252:00 pmDCA - OPO

2 stops16h 40mUnited Airlines

Deal found 11/30

$512

Thu 1/229:00 amOPO - DCA

2 stops14h 49mTAP AIR PORTUGAL

Sun 1/253:15 pmDCA - OPO

1 stop15h 40mTAP AIR PORTUGAL

Deal found 11/29

$1,095

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 2, 2025.

Sun 5/38:20 amOPO - DCA

2 stops16h 44mIberia

Deal found 11/30

$347

Tue 2/178:20 amOPO - DCA

2 stops19h 15mIberia

Deal found 12/2

$348

Fri 3/208:20 amOPO - DCA

2 stops17h 56mIberia

Deal found 11/30

$351

Thu 3/198:20 amOPO - DCA

2 stops28h 25mAmerican Airlines

Deal found 11/30

$375

Sat 2/148:40 pmOPO - DCA

2 stops25h 18mAmerican Airlines

Deal found 12/2

$376

Sun 3/158:40 pmOPO - DCA

2 stops47h 57mBritish Airways

Deal found 12/1

$468

Sun 5/310:30 pmOPO - DCA

3 stops28h 18mMultiple Airlines

Deal found 11/30

$471

Thu 4/28:20 amOPO - DCA

2 stops29h 50mAmerican Airlines

Deal found 11/30

$476

Sun 3/158:20 amOPO - DCA

2 stops17h 40mIberia

Deal found 12/1

$492

Mon 4/612:25 pmOPO - DCA

2 stops23h 34mAmerican Airlines

Deal found 11/30

$496

Sat 4/48:40 pmOPO - DCA

2 stops30h 20mIberia

Deal found 11/30

$507

Mon 5/47:00 amOPO - DCA

3 stops19h 48mMultiple Airlines

Deal found 11/30

$510

Find flight deals from Porto to Reagan-National

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$503 (Mytrip)
One-way from	$347 (Iberia)
Popular in	July
Cheapest in	May
Average price	$620

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. 9% potential increase in price ($66 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($12 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 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

$503

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Thu 1/22

6:00 am-7:45 pm

2 stops42h 45m

Washington, D.C. Reagan-National

Sun 1/25

11:05 am-11:10 am

2 stops19h 05m

$508

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Thu 1/22

6:00 am-7:45 pm

2 stops42h 45m

Washington, D.C. Reagan-National

Sun 1/25

2:00 pm-11:40 am

2 stops16h 40m

$512

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-11:40 am

2 stops20h 35m

$516

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Wed 1/14

6:00 am-7:52 pm

2 stops18h 52m

Washington, D.C. Reagan-National

Wed 1/21

11:10 am-10:30 am

2 stops18h 20m

$517

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Thu 3/5

12:35 pm-7:35 pm

1 stop12h 00m

Washington, D.C. Reagan-National

Mon 3/9

8:10 pm-9:30 am

1 stop9h 20m

$533

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Fri 3/6

6:00 am-8:55 am

2 stops31h 55m

Washington, D.C. Reagan-National

Wed 5/20

6:00 am-11:25 am

2 stops24h 25m

$720

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Mon 12/29

8:20 am-6:42 pm

2 stops15h 22m

Washington, D.C. Reagan-National

Mon 1/5

8:46 pm-5:45 pm

2 stops39h 59m

$829

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Wed 1/14

10:05 pm-6:05 pm

3 stops25h 00m

Washington, D.C. Reagan-National

Wed 1/21

11:05 am-9:50 am

2 stops17h 45m

$882

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Wed 1/14

8:55 am-6:49 pm

2 stops14h 54m

Washington, D.C. Reagan-National

Wed 1/21

6:00 pm-11:55 am

1 stop12h 55m

$1,080

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/30

Showing 1-10 of 22 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 18h 52m. 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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$347+ 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 5/4. 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 2, 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 2, 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 2, 2025.