What are the cheapest airlines to fly from Portugal to Washington, D.C. Reagan-National Airport one-way?

For one-way options, check prices for Finnair. According to our data, you can fly for as low as $478. Users have also found prices from $496 and $500 on British Airways and Iberia, respectively.

What is the cheapest month to book a flight from Portugal to Washington, D.C. Reagan-National Airport?

Currently, February is the cheapest month in which you can book a flight from Portugal to Washington, D.C. Reagan-National Airport (average of $278). Flying from Portugal to Washington, D.C. Reagan-National Airport in June is currently the most expensive (average of $345). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How far in advance should I book a flight from Portugal to Washington, D.C. Reagan-National Airport?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 49 days in advance, which can save you up to 74% on flights from Portugal to Washington, D.C. Reagan-National Airport compared to booking the week you need them. Waiting 49 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $582. For sooner than that we have options available in the next 3 days from $742.

What is the cheapest month to fly from Portugal to Washington, D.C. Reagan-National Airport?

The best pricing can be found in the month of September. Prices to Washington, D.C. Reagan-National Airport from Portugal average $687. You can even find prices in September for less than $687, as users have found deals to Washington, D.C. Reagan-National Airport from as low as $498. The month of July appears to be one of the more expensive times to travel to Washington, D.C. Reagan-National Airport from Portugal. Flying in the targeted month can save you up to 28%.

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.

$683+ Save on 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	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$497 (Kissandfly.com)
One-way from	$478 (StudentUniverse)
Popular in	July
Cheapest in	September
Average price	$581

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

Search Deals

Highest demand for flights based on searches. 16% potential increase in price ($136 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 February 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 février 20, 2025.

ven. 3/1411:05 amLIS - DCA

1 stop13h 10mBritish Airways

dim. 3/304:12 pmDCA - LIS

1 stop11h 53mBritish Airways

Deal found 2/20

$497

ven. 3/76:30 amLIS - DCA

2 stops14h 59mAmerican Airlines

dim. 3/234:12 pmDCA - LIS

1 stop12h 43mAmerican Airlines

Deal found 2/20

$503

mer. 3/56:30 amLIS - DCA

2 stops14h 56mMultiple Airlines

mar. 3/184:12 pmDCA - LIS

1 stop13h 03mMultiple Airlines

Deal found 2/20

$505

lun. 5/1212:20 pmOPO - DCA

2 stops15h 16mAmerican Airlines

lun. 5/193:54 pmDCA - OPO

2 stops14h 46mAmerican Airlines

Deal found 2/20

$519

ven. 3/145:00 amLIS - DCA

2 stops17h 00mDelta

dim. 3/3012:10 pmDCA - LIS

2 stops15h 40mDelta

Deal found 2/20

$545

mer. 5/288:20 pmOPO - DCA

2 stops31h 16mBritish Airways

mer. 12/106:38 amDCA - OPO

2 stops28h 27mBritish Airways

Deal found 2/20

$578

jeu. 2/2710:00 amLIS - DCA

1 stop13h 00mVirgin Atlantic

mer. 3/512:05 pmDCA - LIS

1 stop13h 30mVirgin Atlantic

Deal found 2/20

$613

mer. 5/288:15 amOPO - DCA

2 stops15h 49mMultiple Airlines

sam. 12/135:49 pmDCA - OPO

2 stops12h 56mMultiple Airlines

Deal found 2/20

$628

mer. 5/145:40 amLIS - DCA

2 stops21h 46mAir France

jeu. 8/712:59 pmDCA - LIS

2 stops20h 51mAir France

Deal found 2/20

$634

mer. 5/289:00 amOPO - DCA

1 stop10h 52mUnited Airlines

sam. 12/132:00 pmDCA - OPO

2 stops16h 40mUnited Airlines

Deal found 2/20

$636

dim. 4/136:35 amLIS - DCA

2 stops20h 54mFinnair

sam. 4/195:50 pmDCA - LIS

2 stops48h 10mFinnair

Deal found 2/19

$662

dim. 4/69:20 amOPO - DCA

2 stops19h 24mDelta

dim. 4/135:05 pmDCA - OPO

2 stops17h 30mDelta

Deal found 2/20

$669

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 février 20, 2025.

ven. 3/1411:05 amLIS - DCA

1 stop13h 10mBritish Airways

dim. 3/304:12 pmDCA - LIS

1 stop11h 53mBritish Airways

Deal found 2/20

$497

ven. 3/76:30 amLIS - DCA

2 stops14h 59mAmerican Airlines

dim. 3/234:12 pmDCA - LIS

1 stop12h 43mAmerican Airlines

Deal found 2/20

$503

mer. 3/56:30 amLIS - DCA

2 stops14h 56mMultiple Airlines

mar. 3/184:12 pmDCA - LIS

1 stop13h 03mMultiple Airlines

Deal found 2/20

$505

ven. 3/145:00 amLIS - DCA

2 stops17h 00mDelta

dim. 3/3012:10 pmDCA - LIS

2 stops15h 40mDelta

Deal found 2/20

$545

mer. 5/145:40 amLIS - DCA

2 stops21h 46mAir France

jeu. 8/712:59 pmDCA - LIS

2 stops20h 51mAir France

Deal found 2/20

$634

mer. 5/289:00 amOPO - DCA

1 stop10h 52mUnited Airlines

sam. 12/132:00 pmDCA - OPO

2 stops16h 40mUnited Airlines

Deal found 2/20

$636

dim. 4/136:35 amLIS - DCA

2 stops20h 54mFinnair

sam. 4/195:50 pmDCA - LIS

2 stops48h 10mFinnair

Deal found 2/19

$662

mer. 5/288:15 amOPO - DCA

2 stops19h 21mIberia

dim. 12/1412:53 pmDCA - OPO

2 stops26h 07mIberia

Deal found 2/20

$706

jeu. 5/17:35 amLIS - DCA

2 stops15h 28mAir Canada

sam. 5/108:40 pmDCA - LIS

2 stops14h 50mAir Canada

Deal found 2/20

$750

dim. 3/2310:00 amLIS - DCA

1 stop28h 27mVirgin Atlantic

dim. 3/302:30 pmDCA - LIS

1 stop15h 15mVirgin Atlantic

Deal found 2/20

$851

dim. 4/1312:45 pmLIS - DCA

1 stop15h 59mKLM

lun. 4/213:25 pmDCA - LIS

1 stop14h 20mKLM

Deal found 2/19

$965

lun. 5/1212:20 pmOPO - DCA

2 stops15h 16mAmerican Airlines

lun. 5/193:54 pmDCA - OPO

2 stops14h 46mAmerican Airlines

Deal found 2/20

$519

Last-minute flights from Portugal to Reagan-National
Discover last-minute flight deals from Portugal to Reagan-National. Data last updated février 20, 2025 and is based on user searches.

mer. 2/2611:15 amLIS - DCA

1 stop14h 05mBritish Airways

mer. 3/57:05 pmDCA - LIS

2 stops14h 50mBritish Airways

Deal found 2/20

$614

jeu. 2/275:00 amLIS - DCA

2 stops17h 10mDelta

mer. 3/55:00 pmDCA - LIS

2 stops16h 35mDelta

Deal found 2/20

$571

jeu. 2/2710:00 amLIS - DCA

1 stop13h 00mVirgin Atlantic

mer. 3/512:05 pmDCA - LIS

1 stop13h 30mVirgin Atlantic

Deal found 2/20

$613

mer. 3/56:30 amLIS - DCA

2 stops14h 56mMultiple Airlines

mar. 3/184:12 pmDCA - LIS

1 stop13h 03mMultiple Airlines

Deal found 2/20

$505

mer. 3/56:00 amOPO - DCA

2 stops16h 54mUnited Airlines

sam. 3/86:50 pmDCA - OPO

2 stops15h 20mUnited Airlines

Deal found 2/20

$838

mer. 3/512:00 pmOPO - DCA

2 stops25h 25mTAP AIR PORTUGAL

sam. 3/85:00 pmDCA - OPO

1 stop15h 15mTAP AIR PORTUGAL

Deal found 2/20

$1,400

jeu. 3/611:35 amLIS - DCA

1 stop12h 16mTAP AIR PORTUGAL

sam. 3/295:15 pmDCA - LIS

1 stop12h 00mTAP AIR PORTUGAL

Deal found 2/20

$1,071

ven. 3/76:30 amLIS - DCA

2 stops14h 59mAmerican Airlines

dim. 3/234:12 pmDCA - LIS

1 stop12h 43mAmerican Airlines

Deal found 2/20

$503

ven. 3/1411:05 amLIS - DCA

1 stop13h 10mBritish Airways

dim. 3/304:12 pmDCA - LIS

1 stop11h 53mBritish Airways

Deal found 2/20

$497

ven. 3/145:00 amLIS - DCA

2 stops17h 00mDelta

dim. 3/3012:10 pmDCA - LIS

2 stops15h 40mDelta

Deal found 2/20

$545

dim. 3/238:35 amLIS - DCA

2 stops18h 02mUnited Airlines

dim. 3/303:05 pmDCA - LIS

1 stop12h 15mUnited Airlines

Deal found 2/20

$731

dim. 3/238:35 amLIS - DCA

2 stops28h 22mAir Canada

dim. 3/304:10 pmDCA - LIS

2 stops13h 35mAir Canada

Deal found 2/20

$801

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 février 20, 2025.

sam. 3/296:30 amLIS - DCA

2 stops20h 52mFinnair

Deal found 2/20

$478

jeu. 5/299:40 amOPO - DCA

2 stops17h 56mBritish Airways

Deal found 2/20

$496

mer. 5/2812:20 pmOPO - DCA

2 stops15h 16mIberia

Deal found 2/20

$500

mar. 4/228:35 pmOPO - DCA

2 stops30h 54mMultiple Airlines

Deal found 2/19

$506

mar. 4/1511:05 amLIS - DCA

1 stop13h 54mBritish Airways

Deal found 2/20

$509

mar. 3/188:20 amLIS - DCA

2 stops18h 10mMultiple Airlines

Deal found 2/20

$526

sam. 5/315:40 amLIS - DCA

2 stops17h 29mDelta

Deal found 2/20

$539

mer. 6/411:45 amLIS - DCA

1 stop12h 08mTAP AIR PORTUGAL

Deal found 2/19

$594

lun. 4/218:15 amOPO - DCA

2 stops29h 43mAmerican Airlines

Deal found 2/19

$659

sam. 5/3111:25 amLIS - DCA

1 stop15h 28mUnited Airlines

Deal found 2/20

$709

dim. 5/2512:35 pmOPO - DCA

1 stop12h 05mUnited Airlines

Deal found 2/20

$715

jeu. 2/276:40 pmOPO - DCA

1 stop18h 45mTAP AIR PORTUGAL

Deal found 2/19

$840

Find flights from Portugal to Reagan-National within your budget

Fly from

Fly to

Route

Depart

Return

Price

LisbonWashington, D.C.

LIS - DCA

LISDCA

Lisbon Humberto Delgado

ven. 3/14

11:05 am-8:15 pm

1 stop13h 10m

Washington, D.C. Reagan-National

dim. 3/30

4:12 pm-9:05 am

1 stop11h 53m

$497

LisbonWashington, D.C.

LIS - DCA

LISDCA

Lisbon Humberto Delgado

ven. 3/7

6:30 am-4:29 pm

2 stops14h 59m

Washington, D.C. Reagan-National

dim. 3/23

4:12 pm-8:55 am

1 stop12h 43m

$503

LisbonWashington, D.C.

LIS - DCA

LISDCA

Lisbon Humberto Delgado

mer. 3/5

6:30 am-4:26 pm

2 stops14h 56m

Washington, D.C. Reagan-National

mar. 3/18

4:12 pm-9:15 am

1 stop13h 03m

$505

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

lun. 5/12

12:20 pm-10:36 pm

2 stops15h 16m

Washington, D.C. Reagan-National

lun. 5/19

3:54 pm-11:40 am

2 stops14h 46m

$519

LisbonWashington, D.C.

LIS - DCA

LISDCA

Lisbon Humberto Delgado

ven. 3/14

5:00 am-6:00 pm

2 stops17h 00m

Washington, D.C. Reagan-National

dim. 3/30

12:10 pm-8:50 am

2 stops15h 40m

$545

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

mer. 5/28

8:20 pm-10:36 pm

2 stops31h 16m

Washington, D.C. Reagan-National

jeu. 12/11

6:38 am-5:15 pm

2 stops29h 37m

$578

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

mer. 5/28

8:15 am-7:04 pm

2 stops15h 49m

Washington, D.C. Reagan-National

sam. 12/13

5:49 pm-11:45 am

2 stops12h 56m

$628

LisbonWashington, D.C.

LIS - DCA

LISDCA

Lisbon Humberto Delgado

mer. 5/14

5:40 am-10:26 pm

2 stops21h 46m

Washington, D.C. Reagan-National

jeu. 8/7

12:59 pm-2:50 pm

2 stops20h 51m

$634

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

mer. 5/28

9:00 am-2:52 pm

1 stop10h 52m

Washington, D.C. Reagan-National

sam. 12/13

2:00 pm-11:40 am

2 stops16h 40m

$636

LisbonWashington, D.C.

LIS - DCA

LISDCA

Lisbon Humberto Delgado

dim. 4/13

6:35 am-10:29 pm

2 stops20h 54m

Washington, D.C. Reagan-National

sam. 4/19

5:50 pm-11:00 pm

2 stops48h 10m

$662

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 34 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.

Travel insights for flights from Portugal to Reagan-National

Get recent, data-driven insights about flights from Portugal to Reagan-National including ideal travel times, pricing trends, and more.

Rainfall in Reagan-National by month

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.

Temperature in Reagan-National by month

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).

Reviews of airlines servicing Reagan-National

Peruse reviews from past customers who have flown with Emirates, Delta and KLM from Portugal to Washington, D.C. to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Emirates

8.1

Very good

3,276 reviews

Reviews

1 / 20

2.0

Mediocre

Anonymous,Jun 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.

Emirates

8.1

Very good

3,276 reviews

Emirates

8.1

Very good

3,276 reviews

Reviews

1 / 20

2.0

Mediocre

Anonymous,Jun 2024

DXB - IAH

Delta

8.0

Very good

8,219 reviews

Emirates

8.1

Very good

3,276 reviews

Reviews

1 / 20

2.0

Mediocre

Anonymous,Jun 2024

DXB - IAH

KLM

7.8

Good

1,333 reviews

Emirates

8.1

Very good

3,276 reviews

Reviews

1 / 20

2.0

Mediocre

Anonymous,Jun 2024

DXB - IAH

Finnair

7.6

Good

1,274 reviews

Emirates

8.1

Very good

3,276 reviews

Reviews

1 / 20

2.0

Mediocre

Anonymous,Jun 2024

DXB - IAH

Virgin Atlantic

7.5

Good

654 reviews

Emirates

8.1

Very good

3,276 reviews

Reviews

1 / 20

2.0

Mediocre

Anonymous,Jun 2024

DXB - IAH

Related info for your journey

What are the cheapest airlines to fly from Portugal to Washington, D.C. Reagan-National Airport one-way?
For one-way options, check prices for Finnair. According to our data, you can fly for as low as $478. Users have also found prices from $496 and $500 on British Airways and Iberia, respectively.
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.
What is the cheapest month to book a flight from Portugal to Washington, D.C. Reagan-National Airport?
Currently, February is the cheapest month in which you can book a flight from Portugal to Washington, D.C. Reagan-National Airport (average of $278). Flying from Portugal to Washington, D.C. Reagan-National Airport in June is currently the most expensive (average of $345). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Arlington

Alexandria

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Rockville

Tysons

Gaithersburg

Silver Spring

Fredericksburg

Linthicum Heights

Laurel

Falls Church

Woodbridge

Easton

Herndon

Bowie

Reston

National Harbor

Oxon Hill

Gettysburg

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$478+ 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 3/29. 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 février 20, 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 février 20, 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 février 20, 2025.

Find flights from Portugal to Reagan-National within your budget

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.

Travel insights for flights from Portugal to Reagan-National

Get recent, data-driven insights about flights from Portugal to Reagan-National including ideal travel times, pricing trends, and more.

Rainfall in Reagan-National by month

Plan your trip to Reagan-National by taking into account the average rainfall totals by month.

Temperature in Reagan-National by month

Plan your trip to Reagan-National by taking into account the average temperature totals by month.

Reviews of airlines servicing Reagan-National

Peruse reviews from past customers who have flown with Emirates, Delta and KLM from Portugal to Washington, D.C. to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

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.

What are the cheapest airlines to fly from Portugal to Washington, D.C. Reagan-National Airport one-way?

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?

What is the cheapest month to book a flight from Portugal to Washington, D.C. Reagan-National Airport?

Traveling to a place near Portugal?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for 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 février 20, 2025.