Cheap flights from Washington, D.C. to Lisbon from $270

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Lisbon departing on 10/3. 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 Washington, D.C. to Lisbon (WAS-LIS)

Cheap round-trip flights

PLAY Logo
6:50 pm - 8:20 pmBWI-LIS
20h 30m1 stop
PLAY Logo
9:20 pm - 5:40 pmLIS-BWI
25h 20m1 stop
$361PLAY
Find Deal
Sun, Oct 12 - Fri, Oct 17
PLAY Logo
6:50 pm - 8:20 pmBWI-LIS
20h 30m1 stop
PLAY Logo
9:20 pm - 5:40 pmLIS-BWI
25h 20m1 stop
$393PLAY
Find Deal
Thu, Sep 18 - Fri, Sep 26
Royal Air Maroc Logo
9:05 pm - 12:15 pmIAD-LIS
10h 10m1 stop
Royal Air Maroc Logo
6:40 pm - 7:05 pmLIS-IAD
29h 25m1 stop
$647Royal Air Maroc
Find Deal
Wed, Oct 1 - Tue, Oct 14
Royal Air Maroc Logo
9:05 pm - 12:15 pmIAD-LIS
10h 10m1 stop
Royal Air Maroc Logo
5:55 pm - 7:45 pmLIS-IAD
29h 50m1 stop
$648Royal Air Maroc
Find Deal
Wed, Oct 15 - Sat, Nov 1
TAP AIR PORTUGAL Logo
5:45 pm - 6:05 amIAD-LIS
7h 20mnonstop
TAP AIR PORTUGAL Logo
5:30 pm - 8:50 pmLIS-IAD
8h 20mnonstop
$656TAP AIR PORTUGAL
Find Deal
Mon, Sep 22 - Wed, Oct 1
TAP AIR PORTUGAL Logo
10:20 pm - 10:40 amIAD-LIS
7h 20mnonstop
TAP AIR PORTUGAL Logo
5:30 pm - 8:50 pmLIS-IAD
8h 20mnonstop
$673TAP AIR PORTUGAL
Find Deal
Sun, Sep 21 - Wed, Oct 1
British Airways Logo
4:38 pm - 9:05 amDCA-LIS
11h 27m1 stop
British Airways Logo
11:05 am - 7:55 pmLIS-DCA
12h 50m1 stop
$784British Airways
Find Deal
Tue, Oct 21 - Tue, Oct 28
British Airways Logo
6:38 am - 10:05 amDCA-LIS
22h 27m2 stops
British Airways Logo
6:30 am - 8:59 pmLIS-DCA
18h 29m2 stops
$792British Airways
Find Deal
Sun, Oct 12 - Tue, Oct 28
United Airlines Logo
6:00 pm - 9:20 amDCA-LIS
34h 20m2 stops
United Airlines Logo
5:00 am - 6:05 pmLIS-DCA
18h 05m2 stops
$801United Airlines
Find Deal
Sat, Nov 22 - Wed, Dec 3
United Airlines Logo
4:35 pm - 9:20 amDCA-LIS
11h 45m1 stop
United Airlines Logo
10:15 am - 5:25 pmLIS-DCA
12h 10m1 stop
$840United Airlines
Find Deal
Tue, Oct 21 - Tue, Nov 4

PLAY flights from Washington, D.C. to Lisbon

Our best PLAY deals on Washington, D.C. to Lisbon flight tickets
PLAY
Oct 12
BWI6:50 pmBaltimore/Washington
20h 30m
1 stop
LIS8:20 pmLisbon Humberto Delgado
Oct 17
LIS9:20 pmLisbon Humberto Delgado
25h 20m
1 stop
BWI5:40 pmBaltimore/Washington
PLAY
Sep 18
BWI6:50 pmBaltimore/Washington
20h 30m
1 stop
LIS8:20 pmLisbon Humberto Delgado
Sep 26
LIS9:20 pmLisbon Humberto Delgado
25h 20m
1 stop
BWI5:40 pmBaltimore/Washington
PLAY
Sep 18
BWI6:50 pmBaltimore/Washington
20h 30m
1 stop
LIS8:20 pmLisbon Humberto Delgado
Sep 26
LIS9:20 pmLisbon Humberto Delgado
25h 20m
1 stop
BWI5:40 pmBaltimore/Washington

TAP AIR PORTUGAL flights from Washington, D.C. to Lisbon

Our best TAP AIR PORTUGAL deals on Washington, D.C. to Lisbon flight tickets
TAP AIR PORTUGAL
Sep 22
IAD5:45 pmWashington, D.C. Dulles Intl
7h 20m
LIS6:05 amLisbon Humberto Delgado
Oct 1
LIS5:30 pmLisbon Humberto Delgado
8h 20m
IAD8:50 pmWashington, D.C. Dulles Intl
TAP AIR PORTUGAL
Sep 21
IAD10:20 pmWashington, D.C. Dulles Intl
7h 20m
LIS10:40 amLisbon Humberto Delgado
Oct 1
LIS5:30 pmLisbon Humberto Delgado
8h 20m
IAD8:50 pmWashington, D.C. Dulles Intl
TAP AIR PORTUGAL
Nov 28
IAD10:30 pmWashington, D.C. Dulles Intl
7h 05m
LIS10:35 amLisbon Humberto Delgado
Dec 2
LIS10:45 amLisbon Humberto Delgado
8h 50m
IAD2:35 pmWashington, D.C. Dulles Intl

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to Lisbon 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 August 25, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Lisbon that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BaltimoreLisbon

BWI - LIS

BWILIS

Baltimore/Washington

Sun 10/12

6:50 pm-8:20 pm

1 stop20h 30m

Lisbon Humberto Delgado

Fri 10/17

9:20 pm-5:40 pm

1 stop25h 20m

$361

BaltimoreLisbon

BWI - LIS

BWILIS

Baltimore/Washington

Thu 9/18

6:50 pm-8:20 pm

1 stop20h 30m

Lisbon Humberto Delgado

Fri 9/26

9:20 pm-5:40 pm

1 stop25h 20m

$393

Washington, D.C.Lisbon

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

Wed 10/1

9:05 pm-12:15 pm

1 stop10h 10m

Lisbon Humberto Delgado

Tue 10/14

6:40 pm-7:05 pm

1 stop29h 25m

$647

Washington, D.C.Lisbon

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

Wed 10/15

9:05 pm-12:15 pm

1 stop10h 10m

Lisbon Humberto Delgado

Sat 11/1

5:55 pm-7:45 pm

1 stop29h 50m

$648

Washington, D.C.Lisbon

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

Mon 9/22

5:45 pm-6:05 am

Nonstop7h 20m

Lisbon Humberto Delgado

Wed 10/1

5:30 pm-8:50 pm

Nonstop8h 20m

$656

Washington, D.C.Lisbon

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

Sun 9/21

10:20 pm-10:40 am

Nonstop7h 20m

Lisbon Humberto Delgado

Wed 10/1

5:30 pm-8:50 pm

Nonstop8h 20m

$673

Washington, D.C.Lisbon

DCA - LIS

DCALIS

Washington, D.C. Reagan-National

Tue 10/21

4:38 pm-9:05 am

1 stop11h 27m

Lisbon Humberto Delgado

Tue 10/28

11:05 am-7:55 pm

1 stop12h 50m

$784

Washington, D.C.Lisbon

DCA - LIS

DCALIS

Washington, D.C. Reagan-National

Sun 10/12

6:38 am-10:05 am

2 stops22h 27m

Lisbon Humberto Delgado

Tue 10/28

6:30 am-8:59 pm

2 stops18h 29m

$792

Washington, D.C.Lisbon

DCA - LIS

DCALIS

Washington, D.C. Reagan-National

Sat 11/22

6:00 pm-9:20 am

2 stops34h 20m

Lisbon Humberto Delgado

Wed 12/3

5:00 am-6:05 pm

2 stops18h 05m

$801

Washington, D.C.Lisbon

DCA - LIS

DCALIS

Washington, D.C. Reagan-National

Tue 10/21

4:35 pm-9:20 am

1 stop11h 45m

Lisbon Humberto Delgado

Tue 11/4

10:15 am-5:25 pm

1 stop12h 10m

$840

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 Lisbon from

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

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 Lisbon?

In general, February is the cheapest month to fly from Washington, D.C. to Lisbon. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $668. If you are unable to visit Lisbon during the month of February, then departing from Washington, D.C. during the month January is also very affordable. Most momondo users find prices during this month for around $702.

What is the cheapest day to depart on your flight to Lisbon?

Our data shows that Monday is the least expensive day to fly to Lisbon. Tickets to fly out on this day can be as low as $739. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Washington, D.C. to Lisbon for around $910.

What is the cheapest time of day to depart on your flight to Lisbon?

The cheapest time of day to fly to Lisbon is in the afternoon when flights can be purchased for as low as $775. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $867 on average. Flights to Lisbon from Washington, D.C. at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

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

How far in advance should I book a flight to Lisbon?

You are more likely to see cheaper flights to Lisbon from Washington, D.C. when booking weeks ahead of your departure date. In general, you can expect to find flights to Lisbon for around $902 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Lisbon from Washington, D.C. for as low as $748 on momondo.

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

There are 3 cabin classes available to choose from on Washington, D.C. to Lisbon Humberto Delgado 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 Washington, D.C. to Lisbon flights?

You could potentially save up to 3% on your flight if you consider stops on a Washington, D.C. to Lisbon flight.

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

As of August 2025, prices for Washington, D.C. to Lisbon flights are approximately 30% cheaper when compared to flights at the same time last year.

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

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

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

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

Best Price Found

$296

Fastest flight time

7h 05m

Direct flights

Every day

Airports in Lisbon

1 airport
The best one-way flight to Lisbon from Washington, D.C. in the past 72 hours is $296. The best round-trip flight deal from Washington, D.C. to Lisbon found on momondo in the last 72 hours is $514.
The fastest flight from Washington, D.C. to Lisbon takes 7h 05m
Direct flights go from Washington, D.C. to Lisbon every day.
There is 1 airport near Lisbon: Lisbon Humberto Delgado (LIS)
  • How far is Washington, D.C. to Lisbon Humberto Delgado by plane?

    There are 3562.1 mi between Washington, D.C. and Lisbon Humberto Delgado. 7h 05m is a normal flight duration for this route.

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

    Prices for flights from Washington, D.C. to Lisbon Humberto Delgado Airport were last updated today.

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. to Lisbon Humberto Delgado Airport.

  • What documentation or ID do you need to fly to Lisbon Humberto Delgado Airport?

    The required travel and health documents for your Lisbon Humberto Delgado Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Lisbon Humberto Delgado Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

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

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

Compare and see reviews for airlines that fly from Washington, D.C. to Lisbon with momondo
Airline
Rating
Free Cancellation
Price
PLAYPriceFrom $338Free CancellationRating
7.0
103 reviews
Search PLAY flights
British AirwaysPriceFrom $480Free CancellationRating
6.7
7,305 reviews
Search British Airways flights
TAP AIR PORTUGALPriceFrom $505Free CancellationRating
7.1
1,962 reviews
Search TAP AIR PORTUGAL flights
American AirlinesPriceFrom $508Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Royal Air MarocPriceFrom $552Free CancellationRating
6.1
505 reviews
Search Royal Air Maroc flights
DeltaPriceFrom $563Free CancellationRating
7.9
7,981 reviews
Search Delta flights
Turkish AirlinesPriceFrom $586Free CancellationRating
7.3
3,953 reviews
Search Turkish Airlines flights
IberiaPriceFrom $592Free CancellationRating
7.0
2,889 reviews
Search Iberia flights
Aer LingusPriceFrom $666Free CancellationRating
7.2
1,230 reviews
Search Aer Lingus flights
LufthansaPriceFrom $672Free CancellationRating
6.8
7,359 reviews
Search Lufthansa flights
  • United Airlines Flights From Washington, D.C. to Lisbon

    United Airlines flight deals from Washington, D.C. to Lisbon start from $718 round-trip. Over the 7 United Airlines flights for this route in a normal week, average airfare is usually $1,154 round-trip - but some users have found much cheaper deals with momondo.

  • JetBlue Flights From Washington, D.C. to Lisbon

    Across 2,919 JetBlue reviews on momondo, the average score is 7.2/10. JetBlue flies from Washington, D.C. to Lisbon about 12 times each week, with ticket deals ranging from $707 to $1,166. Price data is based on momondo searches in the last 72 hours.

Traveling to a place near Lisbon?

Book flights to Lisbon if you plan to visit one of these locations
Sintra
Fátima
Nazaré
Ericeira
Setúbal
Oeiras
Almada
Tomar
Peniche
Evora
Estoril
Sesimbra
Leiria
Figueira da Foz
Zambujeira do Mar
Torres Vedras
Batalha
Óbidos
Comporta
Costa da Caparica

Why use momondo?

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

Finding the right flight to Lisbon from Washington, D.C. 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 Lisbon quick and easy, saving you time and money.

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

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

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

momondo provides multiple filters to help you find the best flight to Lisbon from Washington, D.C.. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

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

An easier way to manage your Lisbon trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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1 adult
Sat 8/30
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