How many flights depart from Washington, D.C. to Lisbon on average per week?

As of November 2025, there are 29 flights per week flying from Washington, D.C. to Lisbon. The most common day of the week flights depart is Mon, with 17% of flights taking off on this day.

What is the cheapest airline that flies from Washington, D.C. to Lisbon Humberto Delgado?

Scandinavian Airlines, Royal Air Maroc, and Icelandair are the most popular carriers operating from Washington, D.C. to Lisbon Humberto Delgado

Which layover airport offers the lowest fares from Washington, D.C. to Lisbon?

Flights via Reykjavik (KEF) offer the lowest average round-trip price of $381.

What airlines fly to Lisbon?

TAP AIR PORTUGAL, United Airlines and Royal Air Maroc are the top three most popular airlines that fly to Lisbon from Washington, D.C. according to our data. TAP AIR PORTUGAL is the first choice among our users, with 76% of people opting to fly with this airline when traveling to Lisbon. Keep in mind that there are 13 different airlines that fly to Lisbon on a routine basis, so you have a few additional options to choose from.

Which layover airport has the shortest travel time from Washington, D.C. to Lisbon?

Flights connecting via Montreal (YUL) have the shortest average one-way travel time: 10h 29m.

How many flights depart from Washington, D.C. to Lisbon on average per day?

4 flights are operational daily from Washington, D.C. to Lisbon as of November 2025. The most popular departure time for this route is 10:00PM, with 100% of flights per day taking off in the evening.

Which airport is the most popular layover for flights between Washington, D.C. and Lisbon?

Casablanca (CMN) was the most common stop: 25% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport has the shortest connection time from Washington, D.C. to Lisbon?

Paris (CDG) has the shortest average layover time for this route: 1h 10m.

How long does it take to fly to Lisbon?

Average flight duration from Washington, D.C. to Lisbon depends on which airport you fly into and out of. Flying from Washington, D.C. to Lisbon is 8h 52m on average, while flying from Baltimore to Lisbon is 13h 15m on average. Lisbon is the most popular airport in Lisbon.

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?

As of November 2025, there are 13 operators available to choose from 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.

$250 Cheap Flights from Washington, D.C. to Lisbon in 2025/26

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

Prices are currently low for flights on this route. Typical prices usually range from $692 to $1,214. The lowest price recently found on this route was $458.

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7:40 pm - 8:25 pmBWI-LIS

19h 45m2 stops

9:05 pm - 6:40 pmLIS-BWI

26h 35m2 stops

$458Multiple Airlines

Find Deal

Fri, Jan 23 - Thu, Jan 29

7:40 pm - 7:40 pmBWI-LIS

19h 00m2 stops

8:55 pm - 6:40 pmLIS-BWI

26h 45m2 stops

$491Multiple Airlines

Find Deal

Mon, Nov 17 - Tue, Nov 25

4:40 pm - 9:30 pmBWI-LIS

24h 50m2 stops

6:55 am - 12:11 amLIS-BWI

21h 16m2 stops

$504Scandinavian Airlines

Find Deal

Mon, Mar 16 - Fri, Mar 20

10:54 am - 3:40 pmBWI-LIS

23h 46m2 stops

4:55 pm - 10:04 pmLIS-BWI

34h 09m2 stops

$510Multiple Airlines

Find Deal

Tue, Jan 27 - Sun, Feb 1

4:40 pm - 9:30 pmBWI-LIS

24h 50m2 stops

6:55 am - 12:11 amLIS-BWI

21h 16m2 stops

$526Scandinavian Airlines

Find Deal

Mon, Mar 16 - Fri, Mar 20

1:30 pm - 3:05 pmIAD-LIS

20h 35m1 stop

4:05 pm - 7:20 pmLIS-IAD

32h 15m1 stop

$561Turkish Airlines

Find Deal

Wed, Nov 26 - Wed, Dec 3

1:30 pm - 3:05 pmIAD-LIS

20h 35m1 stop

11:40 am - 11:45 amLIS-IAD

29h 05m1 stop

$597Turkish Airlines

Find Deal

Wed, Nov 19 - Wed, Dec 3

8:45 pm - 4:55 pmIAD-LIS

15h 10m1 stop

5:55 pm - 6:45 pmLIS-IAD

29h 50m1 stop

$605Royal Air Maroc

Find Deal

Fri, Jan 16 - Sat, Jan 24

8:45 pm - 11:35 amIAD-LIS

9h 50m1 stop

5:55 pm - 6:45 pmLIS-IAD

29h 50m1 stop

$606Royal Air Maroc

Find Deal

Fri, Jan 30 - Sat, Feb 7

12:55 pm - 9:20 amDCA-LIS

15h 25m2 stops

6:10 am - 6:05 pmLIS-DCA

16h 55m2 stops

$751Air Canada

Find Deal

Mon, Dec 1 - Thu, Dec 11

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

Our best Turkish Airlines deals on Washington, D.C. to Lisbon flight tickets

Turkish Airlines

Nov 26

IAD1:30 pmWashington, D.C. Dulles Intl

20h 35m

1 stop

LIS3:05 pmLisbon Humberto Delgado

Dec 3

LIS4:05 pmLisbon Humberto Delgado

32h 15m

1 stop

IAD7:20 pmWashington, D.C. Dulles Intl

$561

Find similar

Turkish Airlines

Nov 19

IAD1:30 pmWashington, D.C. Dulles Intl

20h 35m

1 stop

LIS3:05 pmLisbon Humberto Delgado

Dec 3

LIS11:40 amLisbon Humberto Delgado

29h 05m

1 stop

IAD11:45 amWashington, D.C. Dulles Intl

$597

Find similar

Turkish Airlines

Dec 1

IAD1:30 pmWashington, D.C. Dulles Intl

20h 35m

1 stop

LIS3:05 pmLisbon Humberto Delgado

Dec 9

LIS5:55 amLisbon Humberto Delgado

34h 50m

1 stop

IAD11:45 amWashington, D.C. Dulles Intl

$602

Find similar

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

Our best Scandinavian Airlines deals on Washington, D.C. to Lisbon flight tickets

Scandinavian Airlines

Mar 16

BWI4:40 pmBaltimore/Washington

24h 50m

2 stops

LIS9:30 pmLisbon Humberto Delgado

Mar 20

LIS6:55 amLisbon Humberto Delgado

21h 16m

2 stops

BWI12:11 amBaltimore/Washington

$504

Find similar

Scandinavian Airlines

Mar 16

BWI4:40 pmBaltimore/Washington

24h 50m

2 stops

LIS9:30 pmLisbon Humberto Delgado

Mar 20

LIS6:55 amLisbon Humberto Delgado

21h 16m

2 stops

BWI12:11 amBaltimore/Washington

$526

Find similar

Scandinavian Airlines

Feb 7

BWI10:54 amBaltimore/Washington

24h 11m

2 stops

LIS4:05 pmLisbon Humberto Delgado

Feb 18

LIS7:00 pmLisbon Humberto Delgado

34h 11m

2 stops

BWI12:11 amBaltimore/Washington

$530

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BaltimoreLisbon

BWI - LIS

BWILIS

Baltimore/Washington

Fri 1/23

7:40 pm-8:25 pm

2 stops19h 45m

Lisbon Humberto Delgado

Thu 1/29

9:05 pm-6:40 pm

2 stops26h 35m

$458

BaltimoreLisbon

BWI - LIS

BWILIS

Baltimore/Washington

Mon 11/17

7:40 pm-7:40 pm

2 stops19h 00m

Lisbon Humberto Delgado

Tue 11/25

8:55 pm-6:40 pm

2 stops26h 45m

$491

BaltimoreLisbon

BWI - LIS

BWILIS

Baltimore/Washington

Mon 3/16

4:40 pm-9:30 pm

2 stops24h 50m

Lisbon Humberto Delgado

Fri 3/20

6:55 am-12:11 am

2 stops21h 16m

$504

BaltimoreLisbon

BWI - LIS

BWILIS

Baltimore/Washington

Tue 1/27

10:54 am-3:40 pm

2 stops23h 46m

Lisbon Humberto Delgado

Sun 2/1

4:55 pm-10:04 pm

2 stops34h 09m

$510

BaltimoreLisbon

BWI - LIS

BWILIS

Baltimore/Washington

Mon 3/16

4:40 pm-9:30 pm

2 stops24h 50m

Lisbon Humberto Delgado

Fri 3/20

6:55 am-12:11 am

2 stops21h 16m

$526

Washington, D.C.Lisbon

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

Wed 11/26

1:30 pm-3:05 pm

1 stop20h 35m

Lisbon Humberto Delgado

Wed 12/3

4:05 pm-7:20 pm

1 stop32h 15m

$561

Washington, D.C.Lisbon

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

Wed 11/19

1:30 pm-3:05 pm

1 stop20h 35m

Lisbon Humberto Delgado

Wed 12/3

11:40 am-11:45 am

1 stop29h 05m

$597

Washington, D.C.Lisbon

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

Fri 1/16

8:45 pm-4:55 pm

1 stop15h 10m

Lisbon Humberto Delgado

Sat 1/24

5:55 pm-6:45 pm

1 stop29h 50m

$605

Washington, D.C.Lisbon

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

Fri 1/30

8:45 pm-11:35 am

1 stop9h 50m

Lisbon Humberto Delgado

Sat 2/7

5:55 pm-6:45 pm

1 stop29h 50m

$606

Washington, D.C.Lisbon

DCA - LIS

DCALIS

Washington, D.C. Reagan-National

Mon 12/1

12:55 pm-9:20 am

2 stops15h 25m

Lisbon Humberto Delgado

Thu 12/11

6:10 am-6:05 pm

2 stops16h 55m

$751

Flights are sorted by cheapest round-trip flights first.

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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

Prices

Airlines

Layovers

Other information

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

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 $683. 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 $715.

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 $708. 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 $885.

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 $760. 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 $911 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 $730 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 13% 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 November 2025, prices for Washington, D.C. to Lisbon flights are approximately 25% more expensive 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	$290
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 $290. The best round-trip flight deal from Washington, D.C. to Lisbon found on momondo in the last 72 hours is $486.

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)

Search flight deals

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. 9h 50m 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?
As of November 2025, there are 13 operators available to choose from 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?
Based on momondo bookings for flights between Washington, D.C. and Lisbon, the leading plane model is Boeing 767-400, making up 29.05% of the total bookings. Other popular models include Airbus A321neo with 22.30%, Boeing 777 with 12.64%, and Boeing 767-300 with 10.37%.
What is the most popular airline from Washington, D.C. to Lisbon?
momondo data reveals that the most frequently booked airline on the route from Washington, D.C. to Lisbon is TAP AIR PORTUGAL, representing 70% of all bookings. The subsequent popular airlines are United Airlines at 15%, Royal Air Maroc at 3%, and Aer Lingus at 2%.

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
PLAY	PriceFrom $345	Free Cancellation	Rating 7.0 103 reviews	Search PLAY flights
Scandinavian Airlines	PriceFrom $504	Free Cancellation	Rating 7.4 1,557 reviews	Search Scandinavian Airlines flights
American Airlines	PriceFrom $508	Free Cancellation	Rating 7.2 11,038 reviews	Search American Airlines flights
TAP AIR PORTUGAL	PriceFrom $508	Free Cancellation	Rating 7.1 2,046 reviews	Search TAP AIR PORTUGAL flights
British Airways	PriceFrom $510	Free Cancellation	Rating 6.7 7,494 reviews	Search British Airways flights
Royal Air Maroc	PriceFrom $552	Free Cancellation	Rating 6.2 525 reviews	Search Royal Air Maroc flights
Delta	PriceFrom $563	Free Cancellation	Rating 7.9 8,002 reviews	Search Delta flights
Turkish Airlines	PriceFrom $585	Free Cancellation	Rating 7.3 4,038 reviews	Search Turkish Airlines flights
Iberia	PriceFrom $592	Free Cancellation	Rating 7.0 3,006 reviews	Search Iberia flights
JetBlue	PriceFrom $707	Free Cancellation	Rating 7.2 2,907 reviews	Search JetBlue flights

United Airlines Flights From Washington, D.C. to Lisbon
United Airlines flight deals from Washington, D.C. to Lisbon start from $745 round-trip. Over the 7 United Airlines flights for this route in a normal week, average airfare is usually $1,168 round-trip - but some users have found much cheaper deals with momondo.
JetBlue Flights From Washington, D.C. to Lisbon
Across 2,907 JetBlue reviews on momondo, the average score is 7.2/10. JetBlue flies from Washington, D.C. to Lisbon about 4 times each week, with ticket deals ranging from $707 to $1,166. Price data is based on momondo searches in the last 72 hours.

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Ericeira

Nazaré

Oeiras

Setúbal

Peniche

Estoril

Leiria

Sesimbra

Tomar

Almada

Evora

Zambujeira do Mar

Batalha

Figueira da Foz

Óbidos

Torres Vedras

Comporta

Sines

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.

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Cheap flights from Washington, D.C. to Lisbon from $250

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 2/2. 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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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 typical price of a round-trip flight between Washington, D.C. and Lisbon?

What is the cheapest month to fly to Lisbon?

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 $708. 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 $885.

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

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?

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 13% 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 November 2025, prices for Washington, D.C. to Lisbon flights are approximately 25% more expensive when compared to flights at the same time last year.

What is the cheapest airline that flies from Washington, D.C. to Lisbon Humberto Delgado?

Scandinavian Airlines, Royal Air Maroc, and Icelandair are the most popular carriers operating from Washington, D.C. to Lisbon Humberto Delgado

What airlines fly to Lisbon?

Which airport is the most popular layover for flights between Washington, D.C. and Lisbon?

Casablanca (CMN) was the most common stop: 25% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from Washington, D.C. to Lisbon?

Flights via Reykjavik (KEF) offer the lowest average round-trip price of $381.

Which layover airport has the shortest travel time from Washington, D.C. to Lisbon?

Flights connecting via Montreal (YUL) have the shortest average one-way travel time: 10h 29m.

Which layover airport has the shortest connection time from Washington, D.C. to Lisbon?

Paris (CDG) has the shortest average layover time for this route: 1h 10m.

How many flights depart from Washington, D.C. to Lisbon on average per day?

4 flights are operational daily from Washington, D.C. to Lisbon as of November 2025. The most popular departure time for this route is 10:00PM, with 100% of flights per day taking off in the evening.

How many flights depart from Washington, D.C. to Lisbon on average per week?

As of November 2025, there are 29 flights per week flying from Washington, D.C. to Lisbon. The most common day of the week flights depart is Mon, with 17% of flights taking off on this day.

How long does it take to fly to Lisbon?

Average flight duration from Washington, D.C. to Lisbon depends on which airport you fly into and out of. Flying from Washington, D.C. to Lisbon is 8h 52m on average, while flying from Baltimore to Lisbon is 13h 15m on average. Lisbon is the most popular airport in Lisbon.

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

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

Fastest flight time

Direct flights

Airports in Lisbon

How far is Washington, D.C. to Lisbon Humberto Delgado by plane?

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

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?

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

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

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

JetBlue Flights From Washington, D.C. to Lisbon

Traveling to a place near Lisbon?

Why use momondo?

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

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

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

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

An easier way to manage your Lisbon trip