How long is the flight from Portugal to Washington, D.C.?

A quick flight from Portugal to Washington, D.C. can take about 13h 15m. TAP AIR PORTUGAL provides one of the quickest options available for as low as $508. The distance between Portugal and Washington, D.C. is about 3537 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

To fly one-way, consider booking your trip with TAP AIR PORTUGAL, which is currently one of the cheapest options available, starting at $366. JetBlue flights start at $395 while deals on Aer Lingus start at $416 one-way.

In terms of precipitation, rainfall in Washington, D.C. 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. when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C., 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 are the most popular routes from Portugal to Washington, D.C.?

The most popular flight routes from Portugal to Washington, D.C. are Lisbon Humberto Delgado - Washington, D.C. Dulles Intl, Lisbon Humberto Delgado - Baltimore/Washington and Lisbon Humberto Delgado - Washington, D.C. Reagan-National.

What are the cheapest flights from Portugal to Washington, D.C.?

Looking for the cheapest flight from Portugal to Washington, D.C.? While on average our users pay $852, our data indicates the cheapest price to be $497. The most popular route (Lisbon Humberto Delgado - Washington, D.C. Dulles Intl), is priced around $512.

What are the most reliable airlines from Portugal to Washington, D.C.?

No one likes to see their flight delayed. When booking a flight from Portugal to Washington, D.C. consider choosing Air Canada (72%), United Airlines (72%) or Lufthansa (72%) as they are the most reliable in getting you off to your destination on time.

Can I find deals for flights from Portugal to Washington, D.C. that include hotel bookings?

Yes. In addition to deals on Portugal to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Portugal to Washington, D.C.?

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

Can I find deals for business class flights from Portugal to Washington, D.C.?

Yes. Cheapflights offers flight deals from Portugal to Washington, D.C. by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$331+ Flights from Portugal to Washington, D.C.

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Cheap flight deals from Portugal to Washington, D.C.

Cheapest flights from Portugal to Washington, D.C.
Explore the most affordable flight options available from Portugal to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 16, 2025.

Thu 12/256:30 amLIS - IAD

1 stop15h 00mMultiple Airlines

Sat 1/106:20 pmIAD - LIS

1 stop18h 35mMultiple Airlines

Deal found 12/14

$611

Tue 12/2311:55 amLIS - IAD

Nonstop8h 35mUnited Airlines

Sat 1/310:05 pmIAD - LIS

Nonstop7h 10mUnited Airlines

Deal found 12/15

$625

Sun 12/2811:55 amLIS - IAD

Nonstop8h 35mUnited Airlines

Sat 1/310:05 pmIAD - LIS

Nonstop7h 10mUnited Airlines

Deal found 12/13

$626

Thu 12/258:55 amLIS - DCA

1 stop12h 40mBritish Airways

Sat 1/104:39 pmDCA - LIS

1 stop11h 26mBritish Airways

Deal found 12/14

$631

Thu 12/2511:55 amLIS - IAD

Nonstop8h 35mUnited Airlines

Sat 1/1010:06 pmIAD - LIS

1 stop30h 14mUnited Airlines

Deal found 12/14

$632

Wed 12/2411:05 amLIS - DCA

1 stop10h 30mBritish Airways

Tue 1/131:44 pmDCA - LIS

1 stop14h 21mBritish Airways

Deal found 12/16

$632

Thu 12/2510:55 amLIS - DCA

2 stops28h 04mUnited Airlines

Sat 1/108:40 pmDCA - LIS

1 stop31h 40mUnited Airlines

Deal found 12/14

$641

Thu 12/258:55 amLIS - DCA

2 stops14h 57mAmerican Airlines

Sat 1/103:54 pmDCA - LIS

2 stops12h 11mAmerican Airlines

Deal found 12/14

$644

Fri 12/265:00 amLIS - IAD

1 stop20h 15mUnited Airlines

Tue 1/610:28 pmIAD - LIS

2 stops33h 52mUnited Airlines

Deal found 12/12

$653

Sat 12/275:00 amLIS - IAD

1 stop14h 35mUnited Airlines

Tue 1/610:28 pmIAD - LIS

2 stops29h 52mUnited Airlines

Deal found 12/14

$656

Thu 12/2510:55 amLIS - BWI

2 stops27h 53mUnited Airlines

Sat 1/1010:05 amBWI - LIS

2 stops17h 05mUnited Airlines

Deal found 12/14

$658

Mon 12/1512:35 pmLIS - IAD

1 stop11h 10mRoyal Air Maroc

Mon 1/58:45 pmIAD - LIS

1 stop15h 10mRoyal Air Maroc

Deal found 12/13

$659

Best flights from Portugal to Washington, D.C.
Discover carefully curated flight deals from Portugal to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 16, 2025.

Thu 1/157:00 amOPO - IAD

1 stop13h 15mTAP AIR PORTUGAL

Wed 1/2810:30 pmIAD - OPO

1 stop13h 30mTAP AIR PORTUGAL

Deal found 12/15

$508

Wed 1/286:45 amOPO - IAD

2 stops16h 45mMultiple Airlines

Wed 2/47:40 pmIAD - OPO

2 stops14h 15mMultiple Airlines

Deal found 12/14

$529

Thu 1/156:00 amOPO - IAD

2 stops38h 46mAir Canada

Wed 1/289:45 amIAD - OPO

2 stops20h 30mAir Canada

Deal found 12/14

$595

Thu 1/156:00 amOPO - IAD

1 stop14h 50mUnited Airlines

Wed 1/285:15 pmIAD - OPO

1 stop13h 25mUnited Airlines

Deal found 12/13

$595

Mon 1/1211:15 amOPO - IAD

1 stop33h 50mKLM

Mon 1/196:50 pmIAD - OPO

1 stop10h 40mKLM

Deal found 12/15

$599

Thu 1/156:35 amOPO - IAD

1 stop14h 30mDelta

Wed 1/2812:23 pmIAD - OPO

2 stops17h 07mDelta

Deal found 12/14

$600

Tue 3/1710:35 amLIS - BWI

1 stop13h 10mBritish Airways

Tue 4/79:30 pmBWI - LIS

1 stop15h 25mBritish Airways

Deal found 12/15

$623

Wed 1/286:45 amOPO - BWI

2 stops16h 55mMultiple Airlines

Wed 2/47:40 pmBWI - OPO

2 stops14h 15mMultiple Airlines

Deal found 12/14

$530

Thu 3/56:00 amOPO - DCA

2 stops31h 55mUnited Airlines

Mon 3/96:00 pmDCA - OPO

1 stop11h 30mUnited Airlines

Deal found 12/12

$597

Thu 1/156:00 amOPO - DCA

2 stops31h 55mAir Canada

Wed 1/284:15 pmDCA - OPO

2 stops16h 00mAir Canada

Deal found 12/14

$598

Wed 1/285:00 amOPO - BWI

2 stops19h 07mDelta

Wed 2/410:54 amBWI - OPO

2 stops18h 36mDelta

Deal found 12/14

$606

Wed 1/2810:00 amLIS - DCA

1 stop17h 48mKLM

Wed 2/46:00 amDCA - LIS

1 stop21h 00mKLM

Deal found 12/14

$617

Tue 1/137:05 amLIS - BWI

1 stop16h 40mBritish Airways

Tue 1/208:35 pmBWI - LIS

1 stop13h 10mBritish Airways

Deal found 12/14

$623

Thu 1/156:00 amOPO - IAD

2 stops38h 46mMultiple Airlines

Wed 1/289:45 amIAD - OPO

2 stops20h 30mMultiple Airlines

Deal found 12/15

$596

Thu 1/155:00 amLIS - IAD

1 stop15h 50mUnited Airlines

Wed 1/215:38 pmIAD - LIS

1 stop9h 32mUnited Airlines

Deal found 12/13

$598

Thu 3/56:00 amOPO - DCA

2 stops42h 45mAir Canada

Mon 3/911:05 amDCA - OPO

2 stops21h 45mAir Canada

Deal found 12/12

$604

Thu 1/156:35 amOPO - BWI

2 stops17h 32mDelta

Wed 1/2810:54 amBWI - OPO

2 stops18h 36mDelta

Deal found 12/14

$606

Wed 1/217:05 amLIS - BWI

1 stop16h 40mBritish Airways

Fri 1/308:35 pmBWI - LIS

1 stop16h 20mBritish Airways

Deal found 12/14

$623

Thu 1/2910:00 amLIS - DCA

1 stop17h 48mKLM

Thu 2/56:00 amDCA - LIS

1 stop21h 00mKLM

Deal found 12/15

$628

Tue 3/175:00 amLIS - IAD

1 stop14h 35mUnited Airlines

Tue 4/79:55 amIAD - LIS

1 stop18h 25mUnited Airlines

Deal found 12/15

$601

Wed 1/285:00 amOPO - DCA

2 stops19h 52mDelta

Wed 2/411:11 amDCA - OPO

2 stops18h 19mDelta

Deal found 12/14

$606

Sun 1/118:40 pmLIS - BWI

2 stops27h 00mMultiple Airlines

Sun 1/187:40 pmBWI - LIS

2 stops20h 20mMultiple Airlines

Deal found 12/14

$617

Sun 1/1112:30 pmOPO - DCA

2 stops33h 29mUnited Airlines

Sun 1/188:00 pmDCA - OPO

2 stops34h 40mUnited Airlines

Deal found 12/14

$601

Wed 1/285:00 amOPO - IAD

2 stops19h 09mDelta

Wed 2/46:50 pmIAD - OPO

1 stop10h 40mDelta

Deal found 12/14

$606

Mon 1/126:30 amOPO - BWI

2 stops17h 10mMultiple Airlines

Mon 1/197:40 pmBWI - OPO

2 stops19h 50mMultiple Airlines

Deal found 12/15

$625

Sun 1/1112:30 pmOPO - IAD

2 stops34h 05mUnited Airlines

Sun 1/185:10 pmIAD - OPO

2 stops37h 30mUnited Airlines

Deal found 12/14

$601

Wed 1/285:30 amLIS - IAD

1 stop16h 05mDelta

Wed 2/412:23 pmIAD - LIS

2 stops17h 57mDelta

Deal found 12/14

$611

Wed 1/215:00 amLIS - IAD

1 stop14h 35mUnited Airlines

Fri 1/306:00 pmIAD - LIS

1 stop12h 30mUnited Airlines

Deal found 12/13

$603

Wed 1/215:00 amLIS - IAD

2 stops19h 09mDelta

Fri 1/306:50 pmIAD - LIS

1 stop15h 20mDelta

Deal found 12/14

$614

Mon 1/125:00 amLIS - IAD

2 stops41h 35mUnited Airlines

Sun 1/185:50 pmIAD - LIS

1 stop9h 20mUnited Airlines

Deal found 12/15

$604

Last-minute flights from Portugal to Washington, D.C.
Discover last-minute flight deals from Portugal to Washington, D.C.. Data last updated December 16, 2025 and is based on user searches.

Thu 1/157:00 amOPO - IAD

1 stop13h 15mTAP AIR PORTUGAL

Wed 1/2810:30 pmIAD - OPO

1 stop13h 30mTAP AIR PORTUGAL

Deal found 12/15

$508

Thu 1/155:00 amLIS - IAD

1 stop15h 50mLufthansa

Wed 1/285:40 pmIAD - LIS

1 stop14h 40mLufthansa

Deal found 12/13

$583

Thu 1/156:00 amOPO - IAD

1 stop14h 50mUnited Airlines

Wed 1/285:15 pmIAD - OPO

1 stop13h 25mUnited Airlines

Deal found 12/13

$595

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 1/155:00 amLIS - IAD

1 stop20h 15mUnited Airlines

Wed 1/215:38 pmIAD - LIS

1 stop9h 32mUnited Airlines

Deal found 12/15

$598

Wed 1/282:00 pmOPO - IAD

1 stop12h 00mTAP AIR PORTUGAL

Wed 2/410:30 pmIAD - OPO

1 stop9h 35mTAP AIR PORTUGAL

Deal found 12/14

$506

Wed 1/2812:35 pmLIS - IAD

1 stop11h 10mRoyal Air Maroc

Wed 2/48:45 pmIAD - LIS

1 stop9h 50mRoyal Air Maroc

Deal found 12/14

$519

Wed 1/286:45 amOPO - IAD

2 stops16h 45mMultiple Airlines

Wed 2/47:40 pmIAD - OPO

2 stops14h 15mMultiple Airlines

Deal found 12/14

$529

Wed 1/286:45 amOPO - BWI

2 stops16h 55mMultiple Airlines

Wed 2/47:40 pmBWI - OPO

2 stops14h 15mMultiple Airlines

Deal found 12/14

$530

Wed 1/286:40 amLIS - IAD

2 stops16h 50mMultiple Airlines

Wed 2/47:40 pmIAD - LIS

2 stops19h 25mMultiple Airlines

Deal found 12/14

$545

Wed 1/286:40 amLIS - BWI

2 stops17h 00mMultiple Airlines

Wed 2/47:40 pmBWI - LIS

2 stops19h 25mMultiple Airlines

Deal found 12/14

$545

Wed 1/285:15 pmLIS - IAD

Nonstop8h 45mTAP AIR PORTUGAL

Wed 2/410:30 pmIAD - LIS

Nonstop7h 05mTAP AIR PORTUGAL

Deal found 12/14

$589

One-way flights from Portugal to Washington, D.C.
Search for one-way flight options from Portugal to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated December 16, 2025.

Wed 1/287:35 pmLIS - BWI

2 stops48h 31mMultiple Airlines

Deal found 12/14

$331

Sun 3/298:40 pmOPO - IAD

1 stop23h 50mIberia

Deal found 12/15

$367

Mon 2/29:05 pmLIS - BWI

3 stops56h 16mMultiple Airlines

Deal found 12/13

$370

Sun 2/17:45 amLIS - BWI

2 stops18h 33mAmerican Airlines

Deal found 12/13

$371

Wed 3/1810:40 amLIS - BWI

1 stop13h 05mAmerican Airlines

Deal found 12/15

$375

Wed 5/277:20 amLIS - BWI

1 stop17h 20mBritish Airways

Deal found 12/15

$376

Sun 3/228:40 pmOPO - DCA

2 stops28h 50mIberia

Deal found 12/13

$377

Wed 3/2510:40 amLIS - BWI

1 stop13h 05mBritish Airways

Deal found 12/15

$377

Wed 2/46:45 pmLIS - BWI

2 stops31h 33mAmerican Airlines

Deal found 12/13

$382

Sun 5/35:10 pmLIS - BWI

1 stop31h 30mBritish Airways

Deal found 12/14

$389

Sat 3/2810:30 amLIS - BWI

2 stops15h 54mMultiple Airlines

Deal found 12/14

$390

Sat 3/216:30 amLIS - BWI

2 stops17h 15mAmerican Airlines

Deal found 12/15

$393

Find flight deals from Portugal to Washington, D.C.

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$506 (oojo)
One-way from	$331 (Kiwi.com)
Popular in	July
Cheapest in	September
Average price	$637
Good round-trip deal	$598 or less
Good one-way deal	$602 or less

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. (WAS)

Search Deals

One-way flight from Portugal to Washington, D.C. (WAS)

Search Deals

Highest demand for flights based on searches. 10% potential increase in price ($85 potential increase over avg. RT price).

Search Deals

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 December 2025

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Price to beat on a round-trip flight from Portugal to Washington, D.C. (WAS).

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Price to beat on a one-way flight from Portugal to Washington, D.C. (WAS).

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Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Thu 1/15

7:00 am-3:15 pm

1 stop13h 15m

Washington, D.C. Dulles Intl

Wed 1/28

10:30 pm-5:00 pm

1 stop13h 30m

$508

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Wed 1/28

6:45 am-6:30 pm

2 stops16h 45m

Washington, D.C. Dulles Intl

Wed 2/4

7:40 pm-2:55 pm

2 stops14h 15m

$529

PortoBaltimore

OPO - BWI

OPOBWI

Porto

Wed 1/28

6:45 am-6:40 pm

2 stops16h 55m

Baltimore/Washington

Wed 2/4

7:40 pm-2:55 pm

2 stops14h 15m

$530

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Thu 1/15

6:00 am-3:46 pm

2 stops38h 46m

Washington, D.C. Dulles Intl

Wed 1/28

9:45 am-11:15 am

2 stops20h 30m

$595

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Thu 1/15

6:00 am-3:50 pm

1 stop14h 50m

Washington, D.C. Dulles Intl

Wed 1/28

5:15 pm-11:40 am

1 stop13h 25m

$595

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Thu 1/15

6:00 am-3:46 pm

2 stops38h 46m

Washington, D.C. Dulles Intl

Wed 1/28

9:45 am-11:15 am

2 stops20h 30m

$596

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

6:00 pm-9:30 am

1 stop11h 30m

$597

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

4:15 pm-1:15 pm

2 stops16h 00m

$598

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Thu 1/15

5:00 am-3:50 pm

1 stop15h 50m

Washington, D.C. Dulles Intl

Wed 1/21

5:38 pm-8:10 am

1 stop9h 32m

$598

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Mon 1/12

11:15 am-4:05 pm

1 stop33h 50m

Washington, D.C. Dulles Intl

Mon 1/19

6:50 pm-10:30 am

1 stop10h 40m

$599

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

Showing 1-10 of 60 results

...

Best time to book a flight from Portugal to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. 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.

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

Currently, December is the cheapest month in which you can book a flight from Portugal to Washington, D.C. (average of $492). Flying from Portugal to Washington, D.C. in July is currently the most expensive (average of $695). 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.

What is the cheapest time of day to fly from PT to WAS?

When flying from Portugal to Washington, D.C., the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 39% versus a flight in the morning.

Weekly flight availability from Portugal to Washington, D.C.

The most flights from PT0 to WAS are scheduled on a Monday (5 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (3 on average).

How often are flights from Portugal to Washington, D.C. delayed?

About 30% of weekly flights between Portugal and Washington, D.C. have experienced delays in the past year, with the average delay time being 135 minutes.

What is the most punctual flight time for Portugal to Washington, D.C. flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Portugal to Washington, D.C. flights?

Over the last year, United Airlines have had the lowest number of delays on this route, with just 26% of flights being delayed.

Reviews of airlines servicing Washington, D.C.

Peruse reviews from past customers who have flown with United Airlines, TAP AIR PORTUGAL, and Lufthansa from Portugal to Washington, D.C. to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

9,094 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Dec 2025

AMS - EWR

It was good! The first 3/4 of the trip was uncomfortably cold. Only one option for lunch that I didn’t enjoy (vegetarian).

United Airlines

7.4

Good

9,094 reviews

United Airlines

7.4

Good

9,094 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Dec 2025

AMS - EWR

It was good! The first 3/4 of the trip was uncomfortably cold. Only one option for lunch that I didn’t enjoy (vegetarian).

TAP AIR PORTUGAL

7.2

Good

2,091 reviews

United Airlines

7.4

Good

9,094 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Dec 2025

AMS - EWR

It was good! The first 3/4 of the trip was uncomfortably cold. Only one option for lunch that I didn’t enjoy (vegetarian).

Lufthansa

6.8

Okay

7,632 reviews

United Airlines

7.4

Good

9,094 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Dec 2025

AMS - EWR

It was good! The first 3/4 of the trip was uncomfortably cold. Only one option for lunch that I didn’t enjoy (vegetarian).

British Airways

6.7

Okay

7,582 reviews

United Airlines

7.4

Good

9,094 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Dec 2025

AMS - EWR

It was good! The first 3/4 of the trip was uncomfortably cold. Only one option for lunch that I didn’t enjoy (vegetarian).

Related info for your journey

How long is the flight from Portugal to Washington, D.C.?
A quick flight from Portugal to Washington, D.C. can take about 13h 15m. TAP AIR PORTUGAL provides one of the quickest options available for as low as $508. The distance between Portugal and Washington, D.C. is about 3537 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.
What are the cheapest airlines to fly from Portugal to Washington, D.C. one-way?
To fly one-way, consider booking your trip with TAP AIR PORTUGAL, which is currently one of the cheapest options available, starting at $366. JetBlue flights start at $395 while deals on Aer Lingus start at $416 one-way.
What are the most popular routes from Portugal to Washington, D.C.?
The most popular flight routes from Portugal to Washington, D.C. are Lisbon Humberto Delgado - Washington, D.C. Dulles Intl, Lisbon Humberto Delgado - Baltimore/Washington and Lisbon Humberto Delgado - Washington, D.C. Reagan-National.
What are the most reliable airlines from Portugal to Washington, D.C.?
No one likes to see their flight delayed. When booking a flight from Portugal to Washington, D.C. consider choosing Air Canada (72%), United Airlines (72%) or Lufthansa (72%) as they are the most reliable in getting you off to your destination on time.
What are the cheapest flights from Portugal to Washington, D.C.?
Looking for the cheapest flight from Portugal to Washington, D.C.? While on average our users pay $852, our data indicates the cheapest price to be $497. The most popular route (Lisbon Humberto Delgado - Washington, D.C. Dulles Intl), is priced around $512.
Can I find deals for flights from Portugal to Washington, D.C. that include hotel bookings?
Yes. In addition to deals on Portugal to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Portugal to Washington, D.C.?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portugal to Washington, D.C..
Can I find deals for business class flights from Portugal to Washington, D.C.?
Yes. Cheapflights offers flight deals from Portugal to Washington, D.C. 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.?
Currently, December is the cheapest month in which you can book a flight from Portugal to Washington, D.C. (average of $492). Flying from Portugal to Washington, D.C. in July is currently the most expensive (average of $695). 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

Alexandria

Woodbridge

Tysons

Arlington

Owings Mills

Springfield

Hanover

Silver Spring

Fredericksburg

Linthicum Heights

Rockville

Laurel

Towson

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National Harbor

Bowie

Largo

McLean

Clinton

Cordova

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Top 3 airlines flying from Portugal to Washington, D.C.

Airline	Cheapest	Average	Flexibility	On-time
TAP AIR PORTUGAL	Cheapest$492	Average$763	FlexibilityNo cancel fee	On-timeN/A
British Airways	Cheapest$493	Average$644	FlexibilityNo cancel fee	On-time70%
United Airlines	Cheapest$497	Average$726	FlexibilityNo cancel fee	On-time69%

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$331+ Cheap flights from Portugal to Washington, D.C. (WAS)

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 1/28. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheap flight deals from Portugal to Washington, D.C.

Cheapest flights from Portugal to Washington, D.C.Explore the most affordable flight options available from Portugal to Washington, D.C.. 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 Portugal to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 16, 2025.

Find flight deals from Portugal to Washington, D.C.

Keep the following information in mind while searching for Portugal to Washington, D.C. flight deals. Data was last updated December 16, 2025.

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Best time to book a flight from Portugal to Washington, D.C.

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Everything you need to know about your flight from Portugal to Washington, D.C.

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

What is the cheapest time of day to fly from PT to WAS?

Find hourly flight availability from Portugal to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 16, 2025.

Weekly flight availability from Portugal to Washington, D.C.

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Which airline has the best punctuality record on Portugal to Washington, D.C. flights?

Reviews of airlines servicing Washington, D.C.

Peruse reviews from past customers who have flown with United Airlines, TAP AIR PORTUGAL, and Lufthansa from Portugal to Washington, D.C. to help guide your decision. You can also see how each airline stacks up in terms of 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 Washington, D.C.. 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.?

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

What are the most popular routes from Portugal to Washington, D.C.?

What are the most reliable airlines from Portugal to Washington, D.C.?

What are the cheapest flights from Portugal to Washington, D.C.?

Can I find deals for flights from Portugal to Washington, D.C. that include hotel bookings?

How can I find direct flights from Portugal to Washington, D.C.?

Can I find deals for business class flights from Portugal to Washington, D.C.?

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

Traveling to a place near Washington, D.C.?

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Top 3 airlines flying from Portugal to Washington, D.C.

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Cheapest flights from Portugal to Washington, D.C.
Explore the most affordable flight options available from Portugal to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 16, 2025.