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 PT to DCA?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Portugal to Washington, D.C. Reagan-National Airport as you normally would.

Can I find deals for flights from Portugal to Reagan-National that include hotel bookings?

Yes. In addition to deals on Portugal to Reagan-National flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Portugal to Reagan-National?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portugal to Reagan-National.

Can I find deals for business class flights from Portugal to Reagan-National?

Yes. Cheapflights offers flight deals from Portugal 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.

$348+ Flights from Portugal to Washington, D.C. Reagan-National Airport

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Cheap flight deals from Portugal to Reagan-National

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$542 (Delta)
One-way from	$348 (British Airways)
Popular in	July
Cheapest in	September
Average price	$738

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

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Provider most trusted by Cheapflights users for Lisbon Humberto Delgado-Washington, D.C. (WAS) flights.

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From Portugal to Washington, D.C. Reagan-National

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

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Highest demand for flights based on searches. 12% potential increase in price ($93 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).

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Average for round-trip flights in November 2025

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Find flight deals from Portugal to Reagan-National

Cheapest flights from Portugal to Reagan-National
Explore the most affordable flight options available from Portugal to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on novembre 18, 2025.

mer. 12/311:25 amOPO - DCA

2 stops16h 32mDelta

mar. 12/92:55 pmDCA - OPO

2 stops14h 35mDelta

Deal found 11/16

$544

mer. 12/105:00 amLIS - DCA

2 stops17h 25mUnited Airlines

dim. 1/183:15 pmDCA - LIS

1 stop11h 55mUnited Airlines

Deal found 11/18

$573

lun. 12/295:00 amLIS - DCA

2 stops32h 55mUnited Airlines

ven. 1/96:00 pmDCA - LIS

1 stop9h 10mUnited Airlines

Deal found 11/18

$574

jeu. 12/1810:00 amLIS - DCA

2 stops17h 40mDelta

jeu. 1/85:00 pmDCA - LIS

2 stops17h 10mDelta

Deal found 11/17

$580

mer. 12/105:00 amLIS - DCA

2 stops17h 05mDelta

dim. 1/185:00 pmDCA - LIS

2 stops17h 10mDelta

Deal found 11/18

$582

dim. 12/1411:05 amLIS - DCA

1 stop10h 54mBritish Airways

mar. 12/304:59 pmDCA - LIS

1 stop11h 06mBritish Airways

Deal found 11/18

$587

mar. 11/255:30 amLIS - DCA

2 stops17h 30mDelta

lun. 12/14:40 pmDCA - LIS

1 stop10h 20mDelta

Deal found 11/17

$589

dim. 12/145:30 amLIS - DCA

2 stops19h 16mDelta

mar. 12/305:00 pmDCA - LIS

1 stop10h 00mDelta

Deal found 11/17

$591

jeu. 12/1810:55 amLIS - DCA

1 stop16h 01mAir Canada

jeu. 1/86:00 amDCA - LIS

1 stop22h 20mAir Canada

Deal found 11/18

$596

mer. 12/1011:15 amLIS - DCA

1 stop15h 57mVirgin Atlantic

dim. 1/186:00 amDCA - LIS

1 stop21h 00mVirgin Atlantic

Deal found 11/18

$599

dim. 12/145:00 amOPO - DCA

2 stops19h 46mDelta

mar. 12/302:25 pmDCA - OPO

2 stops15h 05mDelta

Deal found 11/18

$606

ven. 12/128:20 amOPO - DCA

2 stops18h 55mAmerican Airlines

dim. 12/281:44 pmDCA - OPO

2 stops25h 16mAmerican Airlines

Deal found 11/16

$623

Best flights from Portugal to Reagan-National
Discover carefully curated flight deals from Portugal to Reagan-National that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated novembre 18, 2025.

lun. 1/1211:15 amOPO - DCA

2 stops16h 33mDelta

lun. 1/2611:10 amDCA - OPO

2 stops18h 20mDelta

Deal found 11/17

$542

mer. 12/311:25 amOPO - DCA

2 stops16h 32mAir France

mar. 12/92:55 pmDCA - OPO

2 stops14h 35mAir France

Deal found 11/16

$544

mer. 1/1410:00 amLIS - DCA

1 stop11h 29mKLM

ven. 1/306:00 amDCA - LIS

1 stop21h 00mKLM

Deal found 11/17

$554

mer. 4/16:00 amOPO - DCA

2 stops18h 59mAir Canada

dim. 4/511:05 amDCA - OPO

2 stops26h 25mAir Canada

Deal found 11/17

$567

mar. 2/1710:00 amLIS - DCA

1 stop11h 29mVirgin Atlantic

dim. 2/222:33 pmDCA - LIS

1 stop12h 27mVirgin Atlantic

Deal found 11/17

$568

mer. 12/105:00 amLIS - DCA

2 stops17h 25mUnited Airlines

dim. 1/183:15 pmDCA - LIS

1 stop11h 55mUnited Airlines

Deal found 11/18

$573

ven. 12/128:20 amOPO - DCA

2 stops18h 55mAmerican Airlines

dim. 12/281:44 pmDCA - OPO

2 stops25h 16mAmerican Airlines

Deal found 11/16

$623

jeu. 1/811:15 amOPO - DCA

2 stops16h 33mDelta

jeu. 1/1511:10 amDCA - OPO

2 stops18h 15mDelta

Deal found 11/16

$542

mer. 1/2810:00 amLIS - DCA

1 stop11h 29mKLM

jeu. 2/195:00 pmDCA - LIS

1 stop10h 55mKLM

Deal found 11/17

$568

lun. 12/295:00 amLIS - DCA

2 stops32h 55mUnited Airlines

ven. 1/96:00 pmDCA - LIS

1 stop9h 10mUnited Airlines

Deal found 11/18

$574

mer. 12/311:25 amOPO - DCA

2 stops16h 32mDelta

mar. 12/92:55 pmDCA - OPO

2 stops14h 35mDelta

Deal found 11/16

$544

mar. 2/1711:25 amLIS - DCA

2 stops16h 18mDelta

dim. 2/2212:05 pmDCA - LIS

1 stop14h 55mDelta

Deal found 11/17

$554

mer. 1/285:00 amLIS - DCA

2 stops17h 53mDelta

jeu. 2/192:33 pmDCA - LIS

1 stop12h 27mDelta

Deal found 11/17

$554

jeu. 12/1810:00 amLIS - DCA

1 stop12h 55mDelta

jeu. 1/85:00 pmDCA - LIS

2 stops17h 10mDelta

Deal found 11/17

$580

sam. 1/106:00 amOPO - DCA

2 stops21h 35mAir Canada

jeu. 1/154:10 pmDCA - OPO

2 stops14h 55mAir Canada

Deal found 11/16

$885

mer. 12/105:00 amLIS - DCA

2 stops17h 05mDelta

dim. 1/185:00 pmDCA - LIS

2 stops17h 10mDelta

Deal found 11/18

$582

mer. 4/112:35 pmOPO - DCA

1 stop13h 03mUnited Airlines

dim. 4/54:30 pmDCA - OPO

1 stop12h 15mUnited Airlines

Deal found 11/17

$912

mar. 2/175:00 amLIS - DCA

2 stops17h 53mDelta

mer. 3/49:55 amDCA - LIS

2 stops17h 45mDelta

Deal found 11/18

$585

dim. 12/145:00 amOPO - DCA

2 stops19h 46mDelta

mar. 12/302:25 pmDCA - OPO

2 stops15h 05mDelta

Deal found 11/18

$606

mar. 12/2311:25 amOPO - DCA

2 stops16h 25mDelta

mar. 1/612:00 pmDCA - OPO

2 stops17h 30mDelta

Deal found 11/17

$721

Last-minute flights from Portugal to Reagan-National
Discover last-minute flight deals from Portugal to Reagan-National. Data last updated novembre 18, 2025 and is based on user searches.

mar. 11/255:30 amLIS - DCA

2 stops17h 30mDelta

lun. 12/14:40 pmDCA - LIS

1 stop10h 20mDelta

Deal found 11/17

$589

mer. 12/311:25 amOPO - DCA

2 stops16h 32mDelta

mar. 12/92:55 pmDCA - OPO

2 stops14h 35mDelta

Deal found 11/16

$544

mer. 12/105:00 amLIS - DCA

2 stops17h 25mUnited Airlines

dim. 1/183:15 pmDCA - LIS

1 stop11h 55mUnited Airlines

Deal found 11/18

$573

mer. 12/105:00 amLIS - DCA

2 stops17h 05mDelta

dim. 1/185:00 pmDCA - LIS

2 stops17h 10mDelta

Deal found 11/18

$582

mer. 12/1011:15 amLIS - DCA

1 stop15h 57mVirgin Atlantic

dim. 1/186:00 amDCA - LIS

1 stop21h 00mVirgin Atlantic

Deal found 11/18

$599

ven. 12/128:20 amOPO - DCA

2 stops18h 55mAmerican Airlines

dim. 12/281:44 pmDCA - OPO

2 stops25h 16mAmerican Airlines

Deal found 11/16

$623

dim. 12/1411:05 amLIS - DCA

1 stop10h 54mBritish Airways

mar. 12/304:59 pmDCA - LIS

1 stop11h 06mBritish Airways

Deal found 11/18

$587

dim. 12/145:30 amLIS - DCA

2 stops19h 16mDelta

mar. 12/305:00 pmDCA - LIS

1 stop10h 00mDelta

Deal found 11/17

$591

dim. 12/145:00 amOPO - DCA

2 stops19h 46mDelta

mar. 12/302:25 pmDCA - OPO

2 stops15h 05mDelta

Deal found 11/18

$606

jeu. 12/1810:00 amLIS - DCA

2 stops17h 40mDelta

jeu. 1/85:00 pmDCA - LIS

2 stops17h 10mDelta

Deal found 11/17

$580

jeu. 12/1810:55 amLIS - DCA

1 stop16h 01mAir Canada

jeu. 1/86:00 amDCA - LIS

1 stop22h 20mAir Canada

Deal found 11/18

$596

lun. 12/295:00 amLIS - DCA

2 stops32h 55mUnited Airlines

ven. 1/98:00 pmDCA - LIS

2 stops31h 55mUnited Airlines

Deal found 11/18

$574

One-way flights from Portugal to Reagan-National
Search for one-way flight options from Portugal to Reagan-National. Find affordable one-way fares based on user searches. Data last updated novembre 18, 2025.

ven. 4/178:20 amOPO - DCA

2 stops15h 44mMultiple Airlines

Deal found 11/17

$348

dim. 3/18:20 amOPO - DCA

2 stops15h 32mAmerican Airlines

Deal found 11/18

$353

dim. 1/188:40 pmOPO - DCA

2 stops25h 28mMultiple Airlines

Deal found 11/18

$372

sam. 1/319:25 amLIS - DCA

3 stops31h 54mMultiple Airlines

Deal found 11/18

$473

jeu. 12/118:55 amLIS - DCA

1 stop18h 01mMultiple Airlines

Deal found 11/18

$477

lun. 12/86:40 pmLIS - DCA

3 stops56h 19mMultiple Airlines

Deal found 11/17

$478

dim. 3/19:15 pmOPO - DCA

3 stops53h 44mMultiple Airlines

Deal found 11/18

$496

ven. 12/129:00 amLIS - DCA

1 stop15h 09mMultiple Airlines

Deal found 11/17

$496

mar. 12/97:40 amLIS - DCA

2 stops20h 17mMultiple Airlines

Deal found 11/18

$500

ven. 1/912:55 pmLIS - DCA

2 stops26h 08mBritish Airways

Deal found 11/17

$502

dim. 1/116:40 pmLIS - DCA

2 stops27h 10mBritish Airways

Deal found 11/18

$505

mer. 4/2910:10 pmLIS - DCA

3 stops29h 23mMultiple Airlines

Deal found 11/17

$517

Cheapflights Fare Finder

Use the filters below to find and compare flights from Portugal 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

lun. 1/12

11:15 am-10:48 pm

2 stops16h 33m

Washington, D.C. Reagan-National

lun. 1/26

11:10 am-10:30 am

2 stops18h 20m

$542

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

jeu. 1/8

11:15 am-10:48 pm

2 stops16h 33m

Washington, D.C. Reagan-National

jeu. 1/15

11:10 am-10:25 am

2 stops18h 15m

$542

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

mer. 12/3

11:25 am-10:57 pm

2 stops16h 32m

Washington, D.C. Reagan-National

mar. 12/9

2:55 pm-10:30 am

2 stops14h 35m

$544

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

mer. 12/3

11:25 am-10:57 pm

2 stops16h 32m

Washington, D.C. Reagan-National

mar. 12/9

2:55 pm-10:30 am

2 stops14h 35m

$544

LisbonWashington, D.C.

LIS - DCA

LISDCA

Lisbon Humberto Delgado

mer. 1/14

10:00 am-4:29 pm

1 stop11h 29m

Washington, D.C. Reagan-National

ven. 1/30

6:00 am-8:00 am

1 stop21h 00m

$554

LisbonWashington, D.C.

LIS - DCA

LISDCA

Lisbon Humberto Delgado

mar. 2/17

11:25 am-10:43 pm

2 stops16h 18m

Washington, D.C. Reagan-National

dim. 2/22

12:05 pm-8:00 am

1 stop14h 55m

$554

LisbonWashington, D.C.

LIS - DCA

LISDCA

Lisbon Humberto Delgado

mer. 1/28

5:00 am-5:53 pm

2 stops17h 53m

Washington, D.C. Reagan-National

jeu. 2/19

2:33 pm-8:00 am

1 stop12h 27m

$554

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

mer. 4/1

6:00 am-7:59 pm

2 stops18h 59m

Washington, D.C. Reagan-National

dim. 4/5

11:05 am-6:30 pm

2 stops26h 25m

$567

LisbonWashington, D.C.

LIS - DCA

LISDCA

Lisbon Humberto Delgado

mar. 2/17

10:00 am-4:29 pm

1 stop11h 29m

Washington, D.C. Reagan-National

dim. 2/22

2:33 pm-8:00 am

1 stop12h 27m

$568

LisbonWashington, D.C.

LIS - DCA

LISDCA

Lisbon Humberto Delgado

mer. 1/28

10:00 am-4:29 pm

1 stop11h 29m

Washington, D.C. Reagan-National

jeu. 2/19

5:00 pm-8:55 am

1 stop10h 55m

$568

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/17

Showing 1-10 of 40 results

Best time to book a flight from Portugal to Reagan-National

Have a flexible travel schedule? Discover the best time to fly to Reagan-National from Portugal 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.

Cheapflights Insights

Everything you need to know about your flight from Portugal to Washington, D.C. Reagan-National Airport

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Related info for your journey

How long is the flight from Portugal to Washington, D.C. Reagan-National Airport?
Departing from Portugal to Washington, D.C. Reagan-National Airport will take you 11h 29m. Airlines will cover a distance of 3562 mi. Both multi-stop and nonstop flights can be found to your destination and back.
Can I find deals for flights from Portugal to Reagan-National that include hotel bookings?
Yes. In addition to deals on Portugal to Reagan-National flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Portugal to Reagan-National?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portugal to Reagan-National.
Can I find deals for business class flights from Portugal to Reagan-National?
Yes. Cheapflights offers flight deals from Portugal 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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Springfield

Hanover

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Fairfax

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Bowie

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$348+ Cheap flights from Portugal 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 4/17. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Portugal 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 Portugal to Reagan-National

Keep the following information in mind while searching for Portugal to Reagan-National flight deals. Data was last updated novembre 18, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Portugal to Reagan-National

Cheapest flights from Portugal to Reagan-NationalExplore the most affordable flight options available from Portugal to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on novembre 18, 2025.

Explore the most affordable flight options available from Portugal to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on novembre 18, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Portugal to Washington, D.C. Reagan-National Airport that are best for you.

Best time to book a flight from Portugal to Reagan-National

Have a flexible travel schedule? Discover the best time to fly to Reagan-National from Portugal with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Portugal to Washington, D.C. Reagan-National Airport

Related info for your journey

Find useful and relevant information for your journey from Portugal to Reagan-National. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

Can I find deals for flights from Portugal to Reagan-National that include hotel bookings?

How can I find direct flights from Portugal to Reagan-National?

Can I find deals for business class flights from Portugal to Reagan-National?

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Cheapest flights from Portugal to Reagan-National
Explore the most affordable flight options available from Portugal to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on novembre 18, 2025.