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Cheap flights from Lisbon to Washington, D.C. from $332

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Lisbon to Washington, D.C. departing on 11/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

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TAP AIR PORTUGAL Logo
11:25 am - 3:15 pmLIS-IAD
8h 50mnonstop
TAP AIR PORTUGAL Logo
10:30 pm - 10:35 amIAD-LIS
7h 05mnonstop
$542TAP AIR PORTUGAL
Find Deal
Thu, Nov 6 - Wed, Nov 19
TAP AIR PORTUGAL Logo
11:25 am - 3:15 pmLIS-IAD
8h 50mnonstop
TAP AIR PORTUGAL Logo
10:30 pm - 10:35 amIAD-LIS
7h 05mnonstop
$548TAP AIR PORTUGAL
Find Deal
Thu, Nov 6 - Wed, Nov 19
Delta Logo
5:00 am - 4:05 pmLIS-IAD
16h 05m1 stop
Delta Logo
6:50 pm - 3:10 pmIAD-LIS
15h 20m1 stop
$568Delta
Find Deal
Fri, Nov 7 - Sun, Nov 23
Delta Logo
5:00 am - 4:05 pmLIS-IAD
16h 05m1 stop
Delta Logo
12:19 pm - 8:55 amIAD-LIS
15h 36m1 stop
$572Delta
Find Deal
Thu, Nov 27 - Thu, Dec 4
Lufthansa Logo
5:00 am - 2:35 pmLIS-IAD
14h 35m1 stop
Lufthansa Logo
10:55 pm - 11:30 pmIAD-LIS
19h 35m1 stop
$582Lufthansa
Find Deal
Thu, Nov 6 - Wed, Nov 19
United Airlines Logo
5:00 am - 3:50 pmLIS-IAD
15h 50m1 stop
United Airlines Logo
10:05 pm - 10:15 amIAD-LIS
7h 10mnonstop
$593United Airlines
Find Deal
Tue, Nov 18 - Mon, Dec 8
United Airlines Logo
5:00 am - 8:15 pmLIS-IAD
20h 15m1 stop
United Airlines Logo
10:05 pm - 10:15 amIAD-LIS
7h 10mnonstop
$594United Airlines
Find Deal
Wed, Dec 24 - Tue, Dec 30
British Airways Logo
7:00 am - 3:35 pmLIS-IAD
13h 35m1 stop
British Airways Logo
6:20 pm - 12:05 pmIAD-LIS
12h 45m1 stop
$595British Airways
Find Deal
Thu, Jan 8 - Mon, Jan 12
British Airways Logo
7:00 am - 6:45 pmLIS-BWI
16h 45m1 stop
British Airways Logo
8:35 pm - 6:00 pmBWI-LIS
16h 25m1 stop
$595British Airways
Find Deal
Thu, Dec 18 - Thu, Jan 8
Lufthansa Logo
11:55 am - 3:30 pmLIS-IAD
8h 35mnonstop
Lufthansa Logo
10:05 pm - 10:15 amIAD-LIS
7h 10mnonstop
$620Lufthansa
Find Deal
Wed, Dec 24 - Tue, Dec 30

United Airlines flights from Lisbon to Washington, D.C.

Our best United Airlines deals on Lisbon to Washington, D.C. flight tickets
United Airlines
Nov 18
LIS5:00 amLisbon Humberto Delgado
15h 50m
1 stop
IAD3:50 pmWashington, D.C. Dulles Intl
Dec 8
IAD10:05 pmWashington, D.C. Dulles Intl
7h 10m
LIS10:15 amLisbon Humberto Delgado
$593
Find similar
United Airlines
Dec 24
LIS5:00 amLisbon Humberto Delgado
20h 15m
1 stop
IAD8:15 pmWashington, D.C. Dulles Intl
Dec 30
IAD10:05 pmWashington, D.C. Dulles Intl
7h 10m
LIS10:15 amLisbon Humberto Delgado
$594
Find similar
United Airlines
Nov 18
LIS5:00 amLisbon Humberto Delgado
15h 50m
1 stop
IAD3:50 pmWashington, D.C. Dulles Intl
Dec 8
IAD5:40 pmWashington, D.C. Dulles Intl
14h 40m
1 stop
LIS1:20 pmLisbon Humberto Delgado
$597
Find similar

British Airways flights from Lisbon to Washington, D.C.

Our best British Airways deals on Lisbon to Washington, D.C. flight tickets
British Airways
Jan 8
LIS7:00 amLisbon Humberto Delgado
13h 35m
1 stop
IAD3:35 pmWashington, D.C. Dulles Intl
Jan 12
IAD6:20 pmWashington, D.C. Dulles Intl
12h 45m
1 stop
LIS12:05 pmLisbon Humberto Delgado
$595
Find similar
British Airways
Dec 24
LIS10:40 amLisbon Humberto Delgado
13h 05m
1 stop
BWI6:45 pmBaltimore/Washington
Dec 30
BWI8:35 pmBaltimore/Washington
16h 05m
1 stop
LIS5:40 pmLisbon Humberto Delgado
$596
Find similar
British Airways
Feb 6
LIS7:05 amLisbon Humberto Delgado
16h 40m
1 stop
BWI6:45 pmBaltimore/Washington
Feb 13
BWI8:35 pmBaltimore/Washington
20h 50m
1 stop
LIS10:25 pmLisbon Humberto Delgado
$597
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Lisbon to Washington, D.C. that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated October 14, 2025.
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

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Thu 11/6

11:25 am-3:15 pm

Nonstop8h 50m

Washington, D.C. Dulles Intl

Wed 11/19

10:30 pm-10:35 am

Nonstop7h 05m

$542

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Thu 11/6

11:25 am-3:15 pm

Nonstop8h 50m

Washington, D.C. Dulles Intl

Wed 11/19

10:30 pm-10:35 am

Nonstop7h 05m

$548

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Fri 11/7

5:00 am-4:05 pm

1 stop16h 05m

Washington, D.C. Dulles Intl

Sun 11/23

6:50 pm-3:10 pm

1 stop15h 20m

$568

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Thu 11/27

5:00 am-4:05 pm

1 stop16h 05m

Washington, D.C. Dulles Intl

Thu 12/4

12:19 pm-8:55 am

1 stop15h 36m

$572

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Thu 11/6

5:00 am-2:35 pm

1 stop14h 35m

Washington, D.C. Dulles Intl

Wed 11/19

10:55 pm-11:30 pm

1 stop19h 35m

$582

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Tue 11/18

5:00 am-3:50 pm

1 stop15h 50m

Washington, D.C. Dulles Intl

Mon 12/8

10:05 pm-10:15 am

Nonstop7h 10m

$593

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Wed 12/24

5:00 am-8:15 pm

1 stop20h 15m

Washington, D.C. Dulles Intl

Tue 12/30

10:05 pm-10:15 am

Nonstop7h 10m

$594

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Thu 1/8

7:00 am-3:35 pm

1 stop13h 35m

Washington, D.C. Dulles Intl

Mon 1/12

6:20 pm-12:05 pm

1 stop12h 45m

$595

LisbonBaltimore

LIS - BWI

LISBWI

Lisbon Humberto Delgado

Thu 12/18

7:00 am-6:45 pm

1 stop16h 45m

Baltimore/Washington

Thu 1/8

8:35 pm-6:00 pm

1 stop16h 25m

$595

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Wed 12/24

11:55 am-3:30 pm

Nonstop8h 35m

Washington, D.C. Dulles Intl

Tue 12/30

10:05 pm-10:15 am

Nonstop7h 10m

$620

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Lisbon to Washington, D.C.

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Lisbon and Washington, D.C.?

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

The month of September is, on average, the cheapest month to fly to Washington, D.C. from Lisbon, with most prices found around $537. If you’re not able to fly to Washington, D.C. in September, then February is your next best option. Flight prices from Lisbon to Washington, D.C. during February average around $558.

What is the cheapest day to depart on your flight to Washington, D.C.?

On average, the least expensive day to fly to Washington, D.C. from Lisbon is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $710. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Lisbon to Washington, D.C. for around $882.

What is the cheapest time of day to depart on your flight to Washington, D.C.?

At noon is the cheapest time of day to fly from Lisbon to Washington, D.C. when you can find flight prices for as low as $484. Flying to Washington, D.C. at noon is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the morning because they tend to be around $787. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Lisbon Humberto Delgado to Washington, D.C. flight route?

Fly from Lisbon Humberto Delgado to Washington, D.C. Dulles Intl for the best Lisbon Humberto Delgado - Washington, D.C. flight prices

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

You are more likely to see cheaper flights to Washington, D.C. from Lisbon when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. for around $728 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. from Lisbon for as low as $581 on momondo.

What cabin class options are available on Lisbon Humberto Delgado to Washington, D.C. flights?

There are 3 cabin classes available to choose from on Lisbon Humberto Delgado to Washington, D.C. flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Lisbon to Washington, D.C. flights?

You could potentially save up to 1% on your flight if you consider stops on a Lisbon to Washington, D.C. flight.

How have Lisbon to Washington, D.C. flight prices changed over time?

As of October 2025, prices for Lisbon to Washington, D.C. flights are approximately 27% more expensive when compared to flights at the same time last year.

When to book flights from Lisbon to Washington, D.C.

Are you open to changing your travel dates? Check out the ideal times to fly from Lisbon to Washington, D.C. according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Lisbon to Washington, D.C. (LIS to WAS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Lisbon to Washington, D.C.

Best Price Found

$545

Fastest flight time

8h 20m

Direct flights

Every day

Airports in Washington, D.C.

1 airport
The best one-way flight to Washington, D.C. from Lisbon in the past 72 hours is $545. The best round-trip flight deal from Lisbon to Washington, D.C. found on momondo in the last 72 hours is $690.
The fastest flight from Lisbon to Washington, D.C. takes 8h 20m
Direct flights go from Lisbon to Washington, D.C. every day.
There is 1 airport near Washington, D.C.: Washington, D.C. Dulles Intl (IAD)
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  • How far is Lisbon Humberto Delgado to Washington, D.C. by plane?

    There are 3562.1 mi between Lisbon Humberto Delgado and Washington, D.C.. Typically, this will take 8h 35m by plane in normal conditions.

  • When did momondo last update prices for flights from Lisbon Humberto Delgado Airport to Washington, D.C.?

    Prices for flights from Lisbon Humberto Delgado Airport to Washington, D.C. are refreshed on a daily basis.

  • How many operators does momondo search for flights from Lisbon Humberto Delgado Airport to Washington, D.C.?

  • How old do you have to be to fly from Lisbon Humberto Delgado Airport to Washington, D.C.?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lisbon Humberto Delgado Airport to Washington, D.C..

  • What documentation or ID do you need to fly to Washington, D.C.?

    The necessary travel and health documents for your Washington, D.C. trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Lisbon to Washington, D.C.?

  • What is the most popular airline from Lisbon to Washington, D.C.?

Best airlines flying from Lisbon to Washington, D.C.

Compare and see reviews for airlines that fly from Lisbon to Washington, D.C. with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom $493Free CancellationRating
6.7
7,456 reviews
Search British Airways flights
United AirlinesPriceFrom $534Free CancellationRating
7.4
8,976 reviews
Search United Airlines flights
TAP AIR PORTUGALPriceFrom $548Free CancellationRating
7.1
2,015 reviews
Search TAP AIR PORTUGAL flights

  • United Airlines Flights From Lisbon to Washington, D.C.

    United Airlines is one of the most popular airlines flying from Lisbon to Washington, D.C., operating 6 flights/week on average for this route. A good United Airlines flight deal for Lisbon to Washington, D.C. starts from $534 round-trip, up to an average price of $701. Our users have rated United Airlines at 7.4/10.

  • TAP AIR PORTUGAL Flights From Lisbon to Washington, D.C.

    The best TAP AIR PORTUGAL deal for Lisbon to Washington, D.C. flight tickets found on momondo in the last 72 hours was $548, round-trip. It should be noted that an average TAP AIR PORTUGAL flight deal for this route in this time was higher, at $723 round-trip. TAP AIR PORTUGAL operates 12 flights out of Lisbon into Washington, D.C. in an average week, so prices vary by time and availability. 2,015 TAP AIR PORTUGAL reviews by users on momondo have scored the airline at 7.1/10.

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

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Gettysburg
National Harbor
Arlington
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Towson
Rockville
Manassas
Fairfax
Reston
Gaithersburg
Glen Burnie
Linthicum Heights
Springfield

Why use momondo?

Why should I use momondo to find a flight deal from Lisbon to Washington, D.C.?

Finding the right flight to Washington, D.C. from Lisbon is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Washington, D.C. quick and easy, saving you time and money.

Can I find flights from Lisbon to Washington, D.C. with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Lisbon to Washington, D.C. flights to just show those with flexible booking policies.

How can momondo help me find flights from Lisbon to Washington, D.C.?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Lisbon to Washington, D.C..

I’m not ready to book a flight from Lisbon to Washington, D.C. right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Washington, D.C., momondo offers a useful price alert feature which will track prices for flights to Washington, D.C. from Lisbon and alert you when they change.

An easier way to manage your Washington, D.C. trip

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Find better results for your trip to the United States

Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 22.4 mi from Washington, D.C.
Washington, D.C. Reagan-National Airport
Washington, D.C. Dulles Intl Airport