What is the cheapest airline that flies from Washington to Lisbon Humberto Delgado?

American Airlines, United Airlines, and British Airways are the most popular carriers operating from Washington to Lisbon Humberto Delgado

How long does it take to fly to Lisbon?

Average flight duration from State of Washington to Lisbon depends on which airport you fly into and out of. Flying from Seattle to Lisbon is 14h 15m on average, while flying from Spokane to Lisbon is 19h 10m on average. Lisbon is the most popular airport in Lisbon.

What airlines fly to Lisbon?

British Airways, Delta and United Airlines are the top three most popular airlines that fly to Lisbon from State of Washington according to our data. British Airways is the first choice among our users, with 34% 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.

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

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

How many operators does momondo search for flights from Washington to Lisbon Humberto Delgado Airport?

As of August 2026, there are 14 operators available to choose from for flights from Washington to Lisbon Humberto Delgado Airport.

How old do you have to be to fly from Washington to Lisbon Humberto Delgado Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington to Lisbon Humberto Delgado Airport.

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

The travel and health documents you'll need for your trip to Lisbon Humberto Delgado Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Lisbon Humberto Delgado Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$261 Cheap Flights from Washington to Lisbon in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Washington to Lisbon

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Cheap round-trip flights

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3:50 pm - 1:30 pmSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

14h 40m1 stop Munich Franz Josef Strauss

5:00 am - 12:00 pmLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

15h 00m1 stop Frankfurt am Main

$724Lufthansa

Wed, Oct 28 - Wed, Nov 25

2:50 pm - 11:30 pmSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

24h 40m1 stop Munich Franz Josef Strauss

5:00 am - 12:00 pmLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

15h 00m1 stop Frankfurt am Main

$724Lufthansa

Wed, Nov 4 - Wed, Nov 18

2:50 pm - 1:30 pmSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

14h 40m1 stop Munich Franz Josef Strauss

5:00 am - 2:37 pmLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

17h 37m2 stops Frankfurt am Main Vancouver Intl

$724Multiple Airlines

Wed, Nov 4 - Wed, Nov 18

3:50 pm - 11:30 pmSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

24h 40m1 stop Munich Franz Josef Strauss

5:00 am - 2:37 pmLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

17h 37m2 stops Frankfurt am Main Vancouver Intl

$724Multiple Airlines

Wed, Oct 28 - Wed, Nov 25

5:00 am - 8:10 amGEG Spokane-LIS Lisbon Humberto Delgado

19h 10m2 stops Denver Intl Newark

5:00 am - 9:09 pmLIS Lisbon Humberto Delgado-GEG Spokane

24h 09m2 stops Frankfurt am Main Denver Intl

$730United Airlines

Sun, Feb 7 - Tue, Feb 9

10:10 am - 6:55 amSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

36h 45m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

5:00 am - 2:37 pmLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

17h 37m2 stops Frankfurt am Main Vancouver Intl

$743Air Canada

Tue, Nov 17 - Fri, Nov 27

3:15 pm - 10:40 amSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

35h 25m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

5:00 am - 6:22 pmLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

21h 22m2 stops Frankfurt am Main Vancouver Intl

$743Air Canada

Sun, Nov 8 - Tue, Nov 24

8:09 am - 10:20 amSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

18h 11m1 stop Washington, D.C. Dulles Intl

5:00 am - 12:00 pmLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

15h 00m1 stop Frankfurt am Main

$744United Airlines

Wed, Nov 4 - Wed, Nov 18

3:25 pm - 5:30 pmSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

18h 05m1 stop Paris Charles de Gaulle

5:00 am - 11:50 amLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

14h 50m1 stop Amsterdam Schiphol

$745Delta

Wed, Jan 6 - Wed, Jan 20

7:20 am - 11:20 amSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

20h 00m2 stops New York John F Kennedy Intl Paris Charles de Gaulle

11:30 am - 11:50 amLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

32h 20m1 stop Amsterdam Schiphol

$745Delta

Wed, Jan 6 - Thu, Jan 21

Cheap last minute flights

Enter your travel dates to find the best prices.

1:05 pm - 10:55 amPDX Portland-LIS Lisbon Humberto Delgado

13h 50m1 stop Amsterdam Schiphol

11:55 am - 11:10 amLIS Lisbon Humberto Delgado-PDX Portland

31h 15m1 stop Amsterdam Schiphol

$1,051Delta

Mon, Aug 17 - Mon, Aug 31

7:05 am - 10:45 amPDX Portland-LIS Lisbon Humberto Delgado

19h 40m2 stops Seattle/Tacoma Intl Boston Logan Intl

11:55 am - 11:10 amLIS Lisbon Humberto Delgado-PDX Portland

31h 15m1 stop Amsterdam Schiphol

$1,051Delta

Mon, Aug 17 - Mon, Aug 31

10:40 am - 6:35 pmSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

23h 55m3 stops Vancouver Intl Zurich Kastrup Copenhagen

1:35 pm - 4:59 pmLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

35h 24m3 stops Warsaw Frederic Chopin Kastrup Copenhagen Munich Franz Josef Strauss

$1,107Multiple Airlines

Wed, Aug 12 - Wed, Aug 19

7:00 pm - 8:40 pmSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

17h 40m2 stops Reykjavik Keflavik Intl Kastrup Copenhagen

10:20 pm - 11:45 amLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

21h 25m1 stop Reykjavik Keflavik Intl

$1,126Icelandair

Sun, Aug 16 - Thu, Aug 20

8:20 pm - 6:10 pmSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

13h 50m1 stop London Heathrow

7:20 am - 6:25 pmLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

19h 05m1 stop London Heathrow

$1,132British Airways

Thu, Aug 13 - Wed, Aug 19

6:05 pm - 6:50 amSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

28h 45m3 stops Frankfurt am Main Barcelona-El Prat Madrid Barajas

9:15 pm - 4:00 pmLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

26h 45m2 stops Barcelona-El Prat Frankfurt am Main

$1,153Multiple Airlines

Thu, Aug 13 - Wed, Aug 19

7:00 pm - 8:40 pmSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

17h 40m2 stops Reykjavik Keflavik Intl Kastrup Copenhagen

7:00 am - 8:40 pmLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

21h 40m2 stops Oslo Gardermoen Reykjavik Keflavik Intl

$1,162Icelandair

Sun, Aug 16 - Thu, Aug 20

1:05 pm - 10:55 amPDX Portland-LIS Lisbon Humberto Delgado

13h 50m1 stop Amsterdam Schiphol

5:00 am - 11:10 amLIS Lisbon Humberto Delgado-PDX Portland

14h 10m1 stop Amsterdam Schiphol

$1,171KLM

Sat, Aug 15 - Sun, Aug 30

1:30 pm - 11:05 pmSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

25h 35m1 stop London Heathrow

11:00 am - 11:59 pmLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

20h 59m2 stops London Heathrow Chicago O'Hare Intl

$1,173British Airways

Thu, Aug 13 - Wed, Aug 19

2:10 pm - 3:30 pmSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

17h 20m1 stop Frankfurt am Main

5:05 am - 11:55 amLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

14h 50m1 stop Frankfurt am Main

$1,327Lufthansa

Sun, Aug 16 - Thu, Aug 20

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British Airways flights from State of Washington to Lisbon

Our best British Airways deals on State of Washington to Lisbon flight tickets

British Airways

Oct 14

PDX7:30 pmPortland

19h 45m

1 stop

LIS11:15 pmLisbon Humberto Delgado

Oct 21

LIS7:20 amLisbon Humberto Delgado

18h 20m

1 stop

PDX5:40 pmPortland

$808

British Airways

Jan 11

PDX5:45 pmPortland

32h 05m

1 stop

LIS9:50 amLisbon Humberto Delgado

Jan 14

LIS3:55 pmLisbon Humberto Delgado

31h 55m

1 stop

PDX3:50 pmPortland

$812

British Airways

Nov 11

PDX5:45 pmPortland

20h 10m

1 stop

LIS9:55 pmLisbon Humberto Delgado

Nov 14

LIS10:40 amLisbon Humberto Delgado

19h 19m

1 stop

PDX9:59 pmPortland

$827

United Airlines flights from State of Washington to Lisbon

Our best United Airlines deals on State of Washington to Lisbon flight tickets

United Airlines

Feb 7

GEG5:00 amSpokane

19h 10m

2 stops

LIS8:10 amLisbon Humberto Delgado

Feb 9

LIS5:00 amLisbon Humberto Delgado

24h 09m

2 stops

GEG9:09 pmSpokane

$729

United Airlines

Feb 7

GEG5:00 amSpokane

19h 10m

2 stops

LIS8:10 amLisbon Humberto Delgado

Feb 9

LIS5:00 amLisbon Humberto Delgado

24h 09m

2 stops

GEG9:09 pmSpokane

$730

United Airlines

Nov 4

SEA6:45 amSeattle/Tacoma Intl

17h 25m

1 stop

LIS8:10 amLisbon Humberto Delgado

Nov 18

LIS5:00 amLisbon Humberto Delgado

15h 00m

1 stop

SEA12:00 pmSeattle/Tacoma Intl

$744

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Wed 10/28

3:50 pm-1:30 pm

1 stop14h 40m

Lisbon Humberto Delgado

Wed 11/25

5:00 am-12:00 pm

1 stop15h 00m

$724

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Wed 11/4

2:50 pm-11:30 pm

1 stop24h 40m

Lisbon Humberto Delgado

Wed 11/18

5:00 am-12:00 pm

1 stop15h 00m

$724

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Wed 11/4

2:50 pm-1:30 pm

1 stop14h 40m

Lisbon Humberto Delgado

Wed 11/18

5:00 am-2:37 pm

2 stops17h 37m

$724

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Wed 10/28

3:50 pm-11:30 pm

1 stop24h 40m

Lisbon Humberto Delgado

Wed 11/25

5:00 am-2:37 pm

2 stops17h 37m

$724

SpokaneLisbon

GEG Spokane - LIS Lisbon Humberto Delgado

GEGLIS

Spokane

Sun 2/7

5:00 am-8:10 am

2 stops19h 10m

Lisbon Humberto Delgado

Tue 2/9

5:00 am-9:09 pm

2 stops24h 09m

$730

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Tue 11/17

10:10 am-6:55 am

2 stops36h 45m

Lisbon Humberto Delgado

Fri 11/27

5:00 am-2:37 pm

2 stops17h 37m

$743

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Sun 11/8

3:15 pm-10:40 am

2 stops35h 25m

Lisbon Humberto Delgado

Tue 11/24

5:00 am-6:22 pm

2 stops21h 22m

$743

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Wed 11/4

8:09 am-10:20 am

1 stop18h 11m

Lisbon Humberto Delgado

Wed 11/18

5:00 am-12:00 pm

1 stop15h 00m

$744

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Wed 1/6

3:25 pm-5:30 pm

1 stop18h 05m

Lisbon Humberto Delgado

Wed 1/20

5:00 am-11:50 am

1 stop14h 50m

$745

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Wed 1/6

7:20 am-11:20 am

2 stops20h 00m

Lisbon Humberto Delgado

Thu 1/21

11:30 am-11:50 am

1 stop32h 20m

$745

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from State of Washington 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

Other information

What is the cheapest month to fly to Lisbon?

In general, January is the cheapest month to fly from State of Washington to Lisbon. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $497. If you are unable to visit Lisbon during the month of January, then departing from State of Washington during the month February is also very affordable. Most momondo users find prices during this month for around $564.

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

You are more likely to see cheaper flights to Lisbon from State of Washington when booking weeks ahead of your departure date. In general, you can expect to find flights to Lisbon for around $848 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Lisbon from State of Washington for as low as $713 on momondo.

Can stopping save me money on State of Washington to Lisbon flights?

You could potentially save up to 9% on your flight if you consider stops on a State of Washington to Lisbon flight.

Cheap State of Washington to Lisbon flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Lisbon

Fastest flight time	13h 45m
Direct flights	None

The fastest flight from State of Washington to Lisbon takes 13h 45m

There are no direct flights from State of Washington to Lisbon. There are no popular flight routes from State of Washington to Lisbon.

Search flight deals

Frequently asked questions about flying from Washington to Lisbon

When did momondo last update prices for flights from Washington to Lisbon Humberto Delgado Airport?
Prices for flights from Washington to Lisbon Humberto Delgado Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Washington to Lisbon Humberto Delgado Airport?
As of August 2026, there are 14 operators available to choose from for flights from Washington to Lisbon Humberto Delgado Airport.
How old do you have to be to fly from Washington to Lisbon Humberto Delgado Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington to Lisbon Humberto Delgado Airport.
What documentation or ID do you need to fly to Lisbon Humberto Delgado Airport?
The travel and health documents you'll need for your trip to Lisbon Humberto Delgado Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Lisbon Humberto Delgado Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from State of Washington to Lisbon

Compare and see reviews for airlines that fly from State of Washington to Lisbon with momondo

Airline	Rating	Free Cancellation	Price
Icelandair	PriceFrom $348	Free Cancellation	Rating 6.9 727 reviews	Search Icelandair flights
Lufthansa	PriceFrom $475	Free Cancellation	Rating 6.8 8,180 reviews	Search Lufthansa flights
British Airways	PriceFrom $482	Free Cancellation	Rating 6.7 8,160 reviews	Search British Airways flights
United Airlines	PriceFrom $486	Free Cancellation	Rating 7.4 10,113 reviews	Search United Airlines flights
American Airlines	PriceFrom $497	Free Cancellation	Rating 7.1 11,915 reviews	Search American Airlines flights
KLM	PriceFrom $503	Free Cancellation	Rating 7.8 1,557 reviews	Search KLM flights
Air France	PriceFrom $504	Free Cancellation	Rating 7.5 1,641 reviews	Search Air France flights
Delta	PriceFrom $505	Free Cancellation	Rating 7.8 8,505 reviews	Search Delta flights
Aer Lingus	PriceFrom $523	Free Cancellation	Rating 7.3 1,697 reviews	Search Aer Lingus flights
Air Canada	PriceFrom $543	Free Cancellation	Rating 7.1 11,465 reviews	Search Air Canada flights

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Can I find flights from Washington to Lisbon with flexible booking policies on momondo?

Flights from Washington to Lisbon with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Lisbon from Washington.

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Yes. momondo can track prices for Washington to Lisbon flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Cheap flights from Washington to Lisbon from $261

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 to Lisbon departing on 10/20. 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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British Airways flights from State of Washington to Lisbon

Our best British Airways deals on State of Washington to Lisbon flight tickets

United Airlines flights from State of Washington to Lisbon

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How to get the cheapest flight ticket from State of Washington to Lisbon

What is the cheapest month to fly to Lisbon?

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

Can stopping save me money on State of Washington to Lisbon flights?

What is the cheapest airline that flies from Washington to Lisbon Humberto Delgado?

What airlines fly to Lisbon?

How long does it take to fly to Lisbon?

Cheap State of Washington to Lisbon flight deals and tips

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Frequently asked questions about flying from Washington to Lisbon

Best airlines flying from State of Washington to Lisbon

Compare and see reviews for airlines that fly from State of Washington to Lisbon with momondo

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Why use momondo?

An easier way to manage your Lisbon trip

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List of cabin classes available on flights landing in Lisbon. Availability may vary depending on flight origin and airline.

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