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Cheap flights from Lisbon to Washington, D.C. from $297

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 3/4. 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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Find the cheapest flights from Lisbon to Washington, D.C.

Cheap round-trip flights

Enter your travel dates to find the best prices.
Lufthansa Logo
5:00 am - 3:50 pm
LIS
-
IAD
15h 50m
1 stop
Lufthansa Logo
7:00 pm - 11:35 am
IAD
-
LIS
12h 35m
1 stop
$452Lufthansa
Sun, Mar 1 - Sun, Mar 8
TAP AIR PORTUGAL Logo
5:15 pm - 9:00 pm
LIS
-
IAD
8h 45mnonstop
TAP AIR PORTUGAL Logo
10:30 pm - 10:35 am
IAD
-
LIS
7h 05mnonstop
$454TAP AIR PORTUGAL
Fri, Feb 13 - Sun, Feb 22
British Airways Logo
7:05 am - 6:45 pm
LIS
-
BWI
16h 40m
1 stop
British Airways Logo
9:35 pm - 9:45 pm
BWI
-
LIS
20h 10m
1 stop
$467British Airways
Fri, Feb 27 - Sun, Mar 15
Multiple Airlines Logo
5:00 am - 3:50 pm
LIS
-
IAD
15h 50m
1 stop
Multiple Airlines Logo
9:30 pm - 11:45 am
IAD
-
LIS
34h 15m
1 stop
$468Multiple Airlines
Fri, Feb 27 - Sun, Mar 15
Multiple Airlines Logo
5:00 am - 8:15 pm
LIS
-
IAD
20h 15m
1 stop
Multiple Airlines Logo
8:20 pm - 5:35 pm
IAD
-
LIS
16h 15m
1 stop
$469Multiple Airlines
Sat, Feb 28 - Thu, Apr 30
United Airlines Logo
5:00 am - 3:50 pm
LIS
-
IAD
15h 50m
1 stop
United Airlines Logo
10:20 pm - 10:45 pm
IAD
-
LIS
19h 25m
1 stop
$470United Airlines
Wed, Mar 4 - Fri, May 1
United Airlines Logo
5:05 am - 2:32 pm
LIS
-
BWI
38h 27m
2 stops
United Airlines Logo
6:00 am - 10:45 pm
BWI
-
LIS
35h 45m
2 stops
$476United Airlines
Wed, Apr 15 - Sun, Apr 19
Delta Logo
5:00 am - 4:35 pm
LIS
-
DCA
16h 35m
2 stops
Delta Logo
12:59 pm - 8:50 am
DCA
-
LIS
14h 51m
2 stops
$484Delta
Wed, Apr 1 - Mon, Apr 27
Delta Logo
5:00 am - 6:29 pm
LIS
-
DCA
18h 29m
2 stops
Delta Logo
9:45 am - 8:00 am
DCA
-
LIS
17h 15m
2 stops
$486Delta
Fri, Mar 6 - Wed, Apr 29
British Airways Logo
11:05 am - 8:46 pm
LIS
-
DCA
14h 41m
1 stop
British Airways Logo
2:16 pm - 9:05 am
DCA
-
LIS
13h 49m
1 stop
$502British Airways
Fri, Feb 13 - Sun, Feb 22

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

Our best United Airlines deals on Lisbon to Washington, D.C. flight tickets
United Airlines
Feb 12
LIS5:00 amLisbon Humberto Delgado
15h 50m
1 stop
IAD3:50 pmWashington, D.C. Dulles Intl
Feb 21
IAD10:05 pmWashington, D.C. Dulles Intl
7h 10m
LIS10:15 amLisbon Humberto Delgado
$467
United Airlines
Mar 4
LIS5:00 amLisbon Humberto Delgado
15h 50m
1 stop
IAD3:50 pmWashington, D.C. Dulles Intl
May 1
IAD10:20 pmWashington, D.C. Dulles Intl
19h 25m
1 stop
LIS10:45 pmLisbon Humberto Delgado
$470
United Airlines
Feb 12
LIS5:00 amLisbon Humberto Delgado
15h 50m
1 stop
IAD3:50 pmWashington, D.C. Dulles Intl
Feb 21
IAD6:00 amWashington, D.C. Dulles Intl
21h 55m
2 stops
LIS8:55 amLisbon Humberto Delgado
$472

SWISS flights from Lisbon to Washington, D.C.

Our best SWISS deals on Lisbon to Washington, D.C. flight tickets
SWISS
Mar 2
LIS3:25 pmLisbon Humberto Delgado
30h 15m
1 stop
IAD4:40 pmWashington, D.C. Dulles Intl
May 1
IAD8:20 pmWashington, D.C. Dulles Intl
22h 05m
1 stop
LIS11:25 pmLisbon Humberto Delgado
$478
SWISS
Mar 7
LIS6:00 pmLisbon Humberto Delgado
25h 20m
2 stops
IAD2:20 pmWashington, D.C. Dulles Intl
Apr 30
IAD8:20 pmWashington, D.C. Dulles Intl
13h 25m
1 stop
LIS2:45 pmLisbon Humberto Delgado
$521
SWISS
Mar 14
LIS6:00 pmLisbon Humberto Delgado
26h 35m
2 stops
IAD4:35 pmWashington, D.C. Dulles Intl
Mar 21
IAD9:30 pmWashington, D.C. Dulles Intl
13h 05m
1 stop
LIS2:35 pmLisbon Humberto Delgado
$540

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 January 29, 2026.
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

Sun 3/1

5:00 am-3:50 pm

1 stop15h 50m

Washington, D.C. Dulles Intl

Sun 3/8

7:00 pm-11:35 am

1 stop12h 35m

$452

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Fri 2/13

5:15 pm-9:00 pm

Nonstop8h 45m

Washington, D.C. Dulles Intl

Sun 2/22

10:30 pm-10:35 am

Nonstop7h 05m

$454

LisbonBaltimore

LIS - BWI

LISBWI

Lisbon Humberto Delgado

Fri 2/27

7:05 am-6:45 pm

1 stop16h 40m

Baltimore/Washington

Sun 3/15

9:35 pm-9:45 pm

1 stop20h 10m

$467

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Fri 2/27

5:00 am-3:50 pm

1 stop15h 50m

Washington, D.C. Dulles Intl

Sun 3/15

9:30 pm-11:45 am

1 stop34h 15m

$468

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Sat 2/28

5:00 am-8:15 pm

1 stop20h 15m

Washington, D.C. Dulles Intl

Thu 4/30

8:20 pm-5:35 pm

1 stop16h 15m

$469

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Wed 3/4

5:00 am-3:50 pm

1 stop15h 50m

Washington, D.C. Dulles Intl

Fri 5/1

10:20 pm-10:45 pm

1 stop19h 25m

$470

LisbonBaltimore

LIS - BWI

LISBWI

Lisbon Humberto Delgado

Wed 4/15

5:05 am-2:32 pm

2 stops38h 27m

Baltimore/Washington

Sun 4/19

6:00 am-10:45 pm

2 stops35h 45m

$476

LisbonWashington, D.C.

LIS - DCA

LISDCA

Lisbon Humberto Delgado

Wed 4/1

5:00 am-4:35 pm

2 stops16h 35m

Washington, D.C. Reagan-National

Mon 4/27

12:59 pm-8:50 am

2 stops14h 51m

$484

LisbonWashington, D.C.

LIS - DCA

LISDCA

Lisbon Humberto Delgado

Fri 3/6

5:00 am-6:29 pm

2 stops18h 29m

Washington, D.C. Reagan-National

Wed 4/29

9:45 am-8:00 am

2 stops17h 15m

$486

LisbonWashington, D.C.

LIS - DCA

LISDCA

Lisbon Humberto Delgado

Fri 2/13

11:05 am-8:46 pm

1 stop14h 41m

Washington, D.C. Reagan-National

Sun 2/22

2:16 pm-9:05 am

1 stop13h 49m

$502

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 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 $524. 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 $579.

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 Sunday. momondo users have found tickets for Sunday departures for as low as $658. 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 $895.

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 $807. 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

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 20% 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 January 2026, prices for Lisbon to Washington, D.C. flights are approximately 16% 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

$634

Fastest flight time

8h 05m

Direct flights

Every day

Airports in Washington, D.C.

2 airports
The best one-way flight to Washington, D.C. from Lisbon in the past 72 hours is $634. The best round-trip flight deal from Lisbon to Washington, D.C. found on momondo in the last 72 hours is $679.
The fastest flight from Lisbon to Washington, D.C. takes 8h 05m
Direct flights go from Lisbon to Washington, D.C. every day.
There are 2 airports in Washington, D.C.. From Lisbon there are direct flights to Washington, D.C. Dulles Intl (IAD).
Search flight deals

  • 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 05m 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
United AirlinesPriceFrom $497Free CancellationRating
7.4
9,215 reviews
Search United Airlines flights
British AirwaysPriceFrom $500Free CancellationRating
6.7
7,705 reviews
Search British Airways flights
TAP AIR PORTUGALPriceFrom $561Free CancellationRating
7.1
2,130 reviews
Search TAP AIR PORTUGAL flights

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

    TAP AIR PORTUGAL is one of the most popular airlines flying from Lisbon to Washington, D.C., operating 4 flights/week on average for this route. A good TAP AIR PORTUGAL flight deal for Lisbon to Washington, D.C. starts from $561 round-trip, up to an average price of $720. Our users have rated TAP AIR PORTUGAL 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
National Harbor
Gettysburg
Arlington
Waldorf
Woodbridge
Tysons
Laurel
Colonial Beach
Silver Spring
Towson
Fredericksburg
Gaithersburg
Rockville
Manassas
Springfield
Fairfax
Linthicum Heights
Bethesda
Reston

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