What are the cheapest airlines flying from Lisbon to Washington, D.C. round-trip?

Flying on PLAY is currently your cheapest option to Washington, D.C., with prices starting at $505. Additional round-trip tickets that might be worth considering are offered by Delta and KLM, with the lowest prices starting at $536 and $549, respectively. Users have found that PLAY is 24% cheaper than the other options available to this destination.

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

$454 is the cheapest one-way deal found within the past few days, from PLAY. You may also be able to find cheap deals on Aer Lingus and WorldTicket, with prices starting from $496 and $516, respectively.

What is the cheapest day to fly from Lisbon to Washington, D.C.?

Travelers seeking maximum savings on their Lisbon to Washington, D.C. flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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 Lisbon to Washington, D.C.?

The most popular flight routes from Lisbon 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 Lisbon to Washington, D.C.?

Looking for the cheapest flight from Lisbon to Washington, D.C.? While on average our users pay $1,654, our data indicates the cheapest price to be $504. The most popular route (Lisbon Humberto Delgado - Washington, D.C. Dulles Intl), is priced around $527.

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

Consider Air Canada (61%), United Airlines (61%) or Lufthansa (61%) when booking your flight. These represent the most reliable airlines when flying from Lisbon to Washington, D.C..

What are the most popular airlines that fly from Lisbon to Washington, D.C.?

Lufthansa, TAP AIR PORTUGAL and United Airlines are the most popular airlines when flying from Lisbon to Washington, D.C..

What is the cheapest day to fly round-trip from Lisbon to Washington, D.C.?

Flights from Lisbon to Washington, D.C. are found to be more expensive on Sunday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Washington, D.C..

How far in advance should I book a flight from Lisbon to Washington, D.C.?

Users have found that booking a flight from Lisbon to Washington, D.C. at least 49 days early can save you up to 71% on average compared to booking a flight this week. If booking 49 days before your flight isn’t an option for you, users have found flights from Lisbon to Washington, D.C. for as little as $551 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $751 for flights departing within the next 3 days.

What is the cheapest month to fly from Lisbon to Washington, D.C.?

Flights from Lisbon to Washington, D.C. lean towards being more expensive in July. Prices are generally better when you fly from Lisbon to Washington, D.C. in September, with the cheapest ticket starting at $481.

What airport do you fly from for flights from Lisbon to Washington, D.C.?

Lisbon Humberto Delgado (LIS), located 4.2 mi from the city center, is the airport you fly out of when you book flights from Lisbon to Washington, D.C.. 3 airlines have flights from Humberto Delgado to Washington, D.C. on a regular basis. Booking flights from Lisbon Humberto Delgado to Washington, D.C. should not be difficult; the airport handles an average of 6 outbound flights to Washington, D.C. per day.

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

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

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

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

Yes. Cheapflights offers flight deals from Lisbon 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.

$407+ Flights from Lisbon to Washington, D.C.

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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Lisbon Humberto Delgado to Washington, D.C. are usually found in September or March, booked 48 days in advance, depart on a Thursday or Wednesday and return on a Monday

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

Round-trip from	$505 (Mytrip)
One-way from	$407 (Kiwi.com)
Popular in	July
Cheapest in	September
Average price	$735
Good round-trip deal	$607 or less
Good one-way deal	$615 or less

From Lisbon Humberto Delgado to Washington, D.C. (WAS)

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One-way flight from Lisbon Humberto Delgado to Washington, D.C. (WAS)

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Highest demand for flights based on searches. 16% potential increase in price ($134 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 June 2025

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

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

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

Cheapest flights from Lisbon to Washington, D.C.
Explore the most affordable flight options available from Lisbon to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 30, 2025.

Fri 8/229:20 pmLIS - BWI

1 stop25h 20mPLAY

Sun 9/76:50 pmBWI - LIS

1 stop20h 30mPLAY

Deal found 6/28

$505

Wed 10/1511:40 amLIS - IAD

1 stop32h 55mMultiple Airlines

Sun 10/196:30 pmIAD - LIS

1 stop11h 45mMultiple Airlines

Deal found 6/28

$527

Wed 10/155:40 amLIS - IAD

2 stops15h 51mDelta

Sun 10/196:30 pmIAD - LIS

1 stop15h 20mDelta

Deal found 6/28

$536

Tue 11/115:00 amLIS - DCA

2 stops17h 27mDelta

Tue 11/255:00 pmDCA - LIS

1 stop11h 00mDelta

Deal found 6/28

$536

Tue 11/1111:15 amLIS - DCA

1 stop12h 56mKLM

Tue 11/253:30 pmDCA - LIS

1 stop12h 30mKLM

Deal found 6/28

$549

Wed 10/156:35 amLIS - BWI

2 stops18h 00mAmerican Airlines

Sun 10/199:20 pmBWI - LIS

1 stop15h 35mAmerican Airlines

Deal found 6/29

$555

Thu 12/410:55 amLIS - IAD

2 stops30h 50mAmerican Airlines

Mon 12/89:55 pmIAD - LIS

1 stop19h 00mAmerican Airlines

Deal found 6/29

$557

Wed 8/277:20 amLIS - IAD

1 stop13h 35mBritish Airways

Fri 10/1010:45 pmIAD - LIS

1 stop19h 25mBritish Airways

Deal found 6/29

$563

Fri 9/127:20 amLIS - BWI

1 stop17h 15mBritish Airways

Fri 9/199:20 pmBWI - LIS

1 stop20h 50mBritish Airways

Deal found 6/30

$563

Tue 11/115:00 amLIS - IAD

1 stop20h 15mLufthansa

Tue 11/2510:05 pmIAD - LIS

Nonstop7h 10mLufthansa

Deal found 6/28

$574

Wed 10/155:00 amLIS - BWI

2 stops21h 43mDelta

Sun 10/191:00 pmBWI - LIS

1 stop16h 45mDelta

Deal found 6/30

$593

Wed 8/135:40 amLIS - IAD

1 stop15h 40mAir France

Wed 10/156:30 pmIAD - LIS

1 stop11h 45mAir France

Deal found 6/29

$611

Best flights from Lisbon to Washington, D.C.
Discover carefully curated flight deals from Lisbon to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 30, 2025.

Fri 8/229:20 pmLIS - BWI

1 stop25h 20mPLAY

Sun 9/76:50 pmBWI - LIS

1 stop20h 30mPLAY

Deal found 6/28

$505

Wed 10/1511:40 amLIS - IAD

1 stop32h 55mMultiple Airlines

Sun 10/196:30 pmIAD - LIS

1 stop11h 45mMultiple Airlines

Deal found 6/28

$527

Wed 10/155:40 amLIS - IAD

2 stops15h 51mDelta

Sun 10/196:30 pmIAD - LIS

1 stop15h 20mDelta

Deal found 6/28

$536

Tue 11/1111:15 amLIS - DCA

1 stop12h 56mKLM

Tue 11/253:30 pmDCA - LIS

1 stop12h 30mKLM

Deal found 6/28

$549

Wed 10/156:35 amLIS - BWI

2 stops18h 00mAmerican Airlines

Sun 10/199:20 pmBWI - LIS

1 stop15h 35mAmerican Airlines

Deal found 6/29

$555

Wed 8/277:20 amLIS - IAD

1 stop13h 35mBritish Airways

Fri 10/1010:45 pmIAD - LIS

1 stop19h 25mBritish Airways

Deal found 6/29

$563

Tue 11/115:00 amLIS - IAD

1 stop20h 15mLufthansa

Tue 11/2510:05 pmIAD - LIS

Nonstop7h 10mLufthansa

Deal found 6/28

$574

Wed 8/135:40 amLIS - IAD

1 stop15h 40mAir France

Wed 10/156:30 pmIAD - LIS

1 stop11h 45mAir France

Deal found 6/29

$611

Thu 12/410:55 amLIS - IAD

2 stops14h 34mAir Canada

Mon 12/84:30 pmIAD - LIS

1 stop11h 50mAir Canada

Deal found 6/27

$614

Tue 7/225:05 amLIS - IAD

1 stop13h 25mUnited Airlines

Sun 9/75:53 pmIAD - LIS

1 stop9h 27mUnited Airlines

Deal found 6/29

$628

Mon 8/118:25 amLIS - IAD

1 stop11h 35mIberia

Mon 8/184:35 pmIAD - LIS

1 stop14h 15mIberia

Deal found 6/28

$648

Wed 7/235:55 amLIS - IAD

1 stop14h 30mSWISS

Mon 9/18:45 pmIAD - LIS

1 stop15h 35mSWISS

Deal found 6/29

$650

Last-minute flights from Lisbon to Washington, D.C.
Discover last-minute flight deals from Lisbon to Washington, D.C.. Data last updated June 30, 2025 and is based on user searches.

Mon 7/2111:00 amLIS - IAD

1 stop14h 10mBritish Airways

Wed 8/610:40 pmIAD - LIS

1 stop19h 30mBritish Airways

Deal found 6/28

$635

Mon 7/217:15 amLIS - DCA

2 stops17h 40mBritish Airways

Tue 8/57:06 pmDCA - LIS

2 stops17h 49mBritish Airways

Deal found 6/28

$640

Mon 7/2111:00 amLIS - BWI

2 stops36h 06mBritish Airways

Mon 7/289:20 pmBWI - LIS

1 stop20h 50mBritish Airways

Deal found 6/30

$651

Tue 7/225:05 amLIS - IAD

1 stop13h 25mUnited Airlines

Fri 9/55:53 pmIAD - LIS

1 stop9h 27mUnited Airlines

Deal found 6/29

$628

Tue 7/225:05 amLIS - IAD

1 stop13h 25mLufthansa

Mon 9/110:20 pmIAD - LIS

1 stop18h 30mLufthansa

Deal found 6/29

$633

Wed 7/235:55 amLIS - IAD

1 stop15h 20mSWISS

Tue 9/28:45 pmIAD - LIS

1 stop13h 00mSWISS

Deal found 6/29

$650

Thu 7/2412:10 pmLIS - IAD

1 stop12h 05mDelta

Wed 9/38:23 pmIAD - LIS

2 stops16h 32mDelta

Deal found 6/29

$612

Thu 7/2411:40 amLIS - DCA

2 stops16h 55mDelta

Wed 9/311:00 amDCA - LIS

2 stops16h 50mDelta

Deal found 6/29

$617

Thu 7/247:30 pmLIS - IAD

1 stop25h 05mKLM

Thu 9/45:25 pmIAD - LIS

1 stop16h 10mKLM

Deal found 6/29

$620

Fri 7/2512:45 pmLIS - DCA

1 stop14h 37mKLM

Wed 9/35:00 pmDCA - LIS

1 stop10h 00mKLM

Deal found 6/29

$652

Sat 7/265:40 amLIS - BWI

2 stops18h 43mDelta

Fri 9/55:36 pmBWI - LIS

2 stops16h 14mDelta

Deal found 6/29

$650

Mon 7/2811:05 amLIS - DCA

2 stops24h 54mAmerican Airlines

Tue 9/27:20 pmDCA - LIS

2 stops15h 10mAmerican Airlines

Deal found 6/29

$619

One-way flights from Lisbon to Washington, D.C.
Search for one-way flight options from Lisbon to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated June 30, 2025.

Wed 9/39:05 pmLIS - BWI

3 stops26h 44mMultiple Airlines

Deal found 6/29

$407

Fri 8/299:20 pmLIS - BWI

1 stop25h 20mPLAY

Deal found 6/30

$454

Sat 11/2210:50 amLIS - IAD

1 stop33h 45mAer Lingus

Deal found 6/29

$496

Tue 8/1910:30 pmLIS - IAD

3 stops49h 54mMultiple Airlines

Deal found 6/28

$497

Sat 9/278:15 amLIS - DCA

2 stops19h 19mMultiple Airlines

Deal found 6/28

$498

Fri 9/129:20 pmLIS - BWI

1 stop25h 20mWorldTicket

Deal found 6/30

$516

Mon 9/291:15 pmLIS - IAD

1 stop10h 50mRoyal Air Maroc

Deal found 6/28

$524

Sun 11/305:10 pmLIS - IAD

Nonstop8h 50mTAP AIR PORTUGAL

Deal found 6/28

$545

Fri 9/126:35 amLIS - IAD

1 stop13h 25mFinnair

Deal found 6/30

$552

Thu 9/411:05 amLIS - BWI

1 stop13h 30mBritish Airways

Deal found 6/30

$556

Sun 11/237:45 amLIS - IAD

1 stop13h 45mAmerican Airlines

Deal found 6/30

$558

Sun 11/307:45 amLIS - DCA

2 stops19h 48mFinnair

Deal found 6/30

$558

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

LisbonBaltimore

LIS - BWI

LISBWI

Lisbon Humberto Delgado

Fri 8/22

9:20 pm-5:40 pm

1 stop25h 20m

Baltimore/Washington

Sun 9/7

6:50 pm-8:20 pm

1 stop20h 30m

$505

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Wed 10/15

7:30 pm-3:35 pm

1 stop25h 05m

Washington, D.C. Dulles Intl

Sun 10/19

6:30 pm-11:15 am

1 stop11h 45m

$527

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Wed 10/15

5:40 am-4:31 pm

2 stops15h 51m

Washington, D.C. Dulles Intl

Sun 10/19

6:30 pm-2:50 pm

1 stop15h 20m

$536

LisbonWashington, D.C.

LIS - DCA

LISDCA

Lisbon Humberto Delgado

Tue 11/11

5:00 am-5:27 pm

2 stops17h 27m

Washington, D.C. Reagan-National

Tue 11/25

5:00 pm-9:00 am

1 stop11h 00m

$536

LisbonWashington, D.C.

LIS - DCA

LISDCA

Lisbon Humberto Delgado

Tue 11/11

11:15 am-7:11 pm

1 stop12h 56m

Washington, D.C. Reagan-National

Tue 11/25

3:30 pm-9:00 am

1 stop12h 30m

$549

LisbonBaltimore

LIS - BWI

LISBWI

Lisbon Humberto Delgado

Wed 10/15

6:35 am-7:35 pm

2 stops18h 00m

Baltimore/Washington

Sun 10/19

9:20 pm-5:55 pm

1 stop15h 35m

$555

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Thu 12/4

10:55 am-12:45 pm

2 stops30h 50m

Washington, D.C. Dulles Intl

Mon 12/8

9:55 pm-9:55 pm

1 stop19h 00m

$557

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Wed 8/27

7:20 am-3:55 pm

1 stop13h 35m

Washington, D.C. Dulles Intl

Fri 10/10

10:45 pm-11:10 pm

1 stop19h 25m

$563

LisbonBaltimore

LIS - BWI

LISBWI

Lisbon Humberto Delgado

Fri 9/12

7:20 am-7:35 pm

1 stop17h 15m

Baltimore/Washington

Fri 9/19

9:20 pm-11:10 pm

1 stop20h 50m

$563

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Tue 11/11

5:00 am-8:15 pm

1 stop20h 15m

Washington, D.C. Dulles Intl

Tue 11/25

10:05 pm-10:15 am

Nonstop7h 10m

$574

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/29

Showing 1-10 of 49 results

...

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

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

How far ahead should I book a flight from Lisbon to Washington, D.C.?

The best time to book flights from Lisbon to Washington, D.C. is 48 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, August is the cheapest month in which you can book a flight from Lisbon to Washington, D.C. (average of $309). Flying from Lisbon to Washington, D.C. in July 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.

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

A simple way to save on the total cost of your ticket is to fly from Lisbon to Washington, D.C. at noon. If you’re flexible enough to do this you can expect to save up to 39% on your trip compared to booking a flight in the morning.

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

The most flights from LIS to WAS are scheduled on a Monday (7 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (5 on average).

How much does it cost to fly round-trip from Lisbon to Washington, D.C.?

Reviews of airlines servicing Washington, D.C.

Get a feel of what it's like to fly with Delta, KLM, and Finnair from Lisbon to Washington, D.C. by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,973 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,973 reviews

Delta

8.0

Very good

7,973 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

KLM

7.8

Good

1,365 reviews

Delta

8.0

Very good

7,973 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Finnair

7.6

Good

1,299 reviews

Delta

8.0

Very good

7,973 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Air France

7.5

Good

1,471 reviews

Delta

8.0

Very good

7,973 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

SWISS

7.5

Good

1,654 reviews

Delta

8.0

Very good

7,973 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

What airport do you fly from for flights from Lisbon to Washington, D.C.?
Lisbon Humberto Delgado (LIS), located 4.2 mi from the city center, is the airport you fly out of when you book flights from Lisbon to Washington, D.C.. 3 airlines have flights from Humberto Delgado to Washington, D.C. on a regular basis. Booking flights from Lisbon Humberto Delgado to Washington, D.C. should not be difficult; the airport handles an average of 6 outbound flights to Washington, D.C. per day.
What are the cheapest airlines flying from Lisbon to Washington, D.C. round-trip?
Flying on PLAY is currently your cheapest option to Washington, D.C., with prices starting at $505. Additional round-trip tickets that might be worth considering are offered by Delta and KLM, with the lowest prices starting at $536 and $549, respectively. Users have found that PLAY is 24% cheaper than the other options available to this destination.
What are the cheapest airlines to fly from Lisbon to Washington, D.C. one-way?
$454 is the cheapest one-way deal found within the past few days, from PLAY. You may also be able to find cheap deals on Aer Lingus and WorldTicket, with prices starting from $496 and $516, respectively.
What are the most popular routes from Lisbon to Washington, D.C.?
The most popular flight routes from Lisbon 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 Lisbon to Washington, D.C.?
Consider Air Canada (61%), United Airlines (61%) or Lufthansa (61%) when booking your flight. These represent the most reliable airlines when flying from Lisbon to Washington, D.C..
What are the cheapest flights from Lisbon to Washington, D.C.?
Looking for the cheapest flight from Lisbon to Washington, D.C.? While on average our users pay $1,654, our data indicates the cheapest price to be $504. The most popular route (Lisbon Humberto Delgado - Washington, D.C. Dulles Intl), is priced around $527.
Can I find deals for flights from Lisbon to Washington, D.C. that include hotel bookings?
Yes. In addition to deals on Lisbon to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Lisbon 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 Lisbon to Washington, D.C..
Can I find deals for business class flights from Lisbon to Washington, D.C.?
Yes. Cheapflights offers flight deals from Lisbon 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 Lisbon to Washington, D.C.?
Currently, August is the cheapest month in which you can book a flight from Lisbon to Washington, D.C. (average of $309). Flying from Lisbon to Washington, D.C. in July 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

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Fredericksburg

Linthicum Heights

Gaithersburg

Fairfax

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National Harbor

Manassas

Dundalk

Bowie

Browse thousands of different options on Cheapflights for your next trip

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

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$534	Average$635	FlexibilityNo cancel fee	On-time69%
Lufthansa	Cheapest$536	Average$657	FlexibilityNo cancel fee	On-time76%
TAP AIR PORTUGAL	Cheapest$548	Average$730	FlexibilityNo cancel fee	On-timeN/A

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$407+ Cheap flights from Lisbon (LIS) 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 9/3. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Lisbon to Washington, D.C. with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Lisbon Humberto Delgado to Washington, D.C. are usually found in September or March, booked 48 days in advance, depart on a Thursday or Wednesday and return on a Monday

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

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

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

Cheapest flights from Lisbon to Washington, D.C.Explore the most affordable flight options available from Lisbon to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 30, 2025.

Explore the most affordable flight options available from Lisbon to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 30, 2025.

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How far ahead should I book a flight from Lisbon to Washington, D.C.?

Use this chart to determine the optimal time to book a round-trip flight from Lisbon to Washington, D.C.. Price data was last updated on June 27, 2025.

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

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

Find hourly flight availability from Lisbon 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 June 30, 2025.

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

How much does it cost to fly round-trip from Lisbon to Washington, D.C.?

Reviews of airlines servicing Washington, D.C.

Get a feel of what it's like to fly with Delta, KLM, and Finnair from Lisbon to Washington, D.C. by reading reviews from past customers. Users have also rated airlines 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 Lisbon 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.

What airport do you fly from for flights from Lisbon to Washington, D.C.?

What are the cheapest airlines flying from Lisbon to Washington, D.C. round-trip?

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

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

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

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

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

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

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

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Alternative routes for Lisbon to Washington, D.C.

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

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Cheapest flights from Lisbon to Washington, D.C.
Explore the most affordable flight options available from Lisbon to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 30, 2025.