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

Air Canada, United Airlines, and Lufthansa 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 13h 35m on average, while flying from Spokane to Lisbon is 17h 45m on average. Lisbon is the most popular airport in Lisbon.

What airlines fly to Lisbon?

British Airways, United Airlines and Delta 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 14 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 March 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.

$242 Cheap Flights from Washington to Lisbon in 2026

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Find the cheapest flights from Washington to Lisbon

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:50 pm - 10:45 pm

SEA

LIS

19h 55m

1 stop

6:15 am - 10:42 pm

LIS

SEA

24h 27m

2 stops

$622Lufthansa

Sun, Apr 19 - Tue, Apr 28

6:50 pm - 10:45 pm

SEA

LIS

19h 55m

1 stop

5:05 am - 12:20 pm

LIS

SEA

15h 15m

1 stop

$630Lufthansa

Sun, Apr 19 - Tue, Apr 28

2:10 pm - 11:35 pm

SEA

LIS

25h 25m

1 stop

5:05 am - 12:20 pm

LIS

SEA

15h 15m

1 stop

$633Lufthansa

Mon, Apr 20 - Mon, Apr 27

7:10 pm - 9:35 pm

SEA

LIS

18h 25m

1 stop

10:15 pm - 5:10 pm

LIS

SEA

26h 55m

1 stop

$647Aer Lingus

Thu, Apr 23 - Fri, May 8

8:00 am - 9:20 am

SEA

LIS

17h 20m

2 stops

5:05 am - 12:20 pm

LIS

SEA

15h 15m

1 stop

$650Multiple Airlines

Mon, Apr 20 - Mon, Apr 27

8:20 pm - 11:15 pm

SEA

LIS

18h 55m

1 stop

11:05 am - 9:23 pm

LIS

SEA

18h 18m

1 stop

$656British Airways

Wed, Apr 29 - Wed, May 6

6:50 pm - 10:45 pm

SEA

LIS

19h 55m

1 stop

5:05 am - 12:20 pm

LIS

SEA

15h 15m

1 stop

$657United Airlines

Fri, Apr 17 - Tue, Apr 21

7:30 pm - 11:05 pm

PDX

LIS

19h 35m

1 stop

8:25 am - 11:54 pm

LIS

PDX

23h 29m

2 stops

$662Multiple Airlines

Sun, Apr 19 - Mon, Apr 27

1:46 pm - 10:45 pm

GEG

LIS

48h 59m

2 stops

1:00 pm - 9:16 pm

LIS

GEG

40h 16m

2 stops

$669United Airlines

Sun, Apr 19 - Mon, May 4

7:30 pm - 11:10 pm

PDX

LIS

19h 40m

1 stop

7:20 am - 10:56 pm

LIS

PDX

23h 36m

2 stops

$681British Airways

Fri, Apr 17 - Sun, May 3

British Airways flights from State of Washington to Lisbon

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

British Airways

Apr 29

SEA8:20 pmSeattle/Tacoma Intl

18h 55m

1 stop

LIS11:15 pmLisbon Humberto Delgado

May 6

LIS11:05 amLisbon Humberto Delgado

18h 18m

1 stop

SEA9:23 pmSeattle/Tacoma Intl

$656

British Airways

Apr 7

SEA8:20 pmSeattle/Tacoma Intl

13h 35m

1 stop

LIS5:55 pmLisbon Humberto Delgado

Apr 15

LIS11:05 amLisbon Humberto Delgado

18h 18m

1 stop

SEA9:23 pmSeattle/Tacoma Intl

$665

British Airways

Apr 15

PDX7:30 pmPortland

30h 35m

1 stop

LIS10:05 amLisbon Humberto Delgado

May 3

LIS7:20 amLisbon Humberto Delgado

23h 36m

2 stops

PDX10:56 pmPortland

$689

Turkish Airlines flights from State of Washington to Lisbon

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

Turkish Airlines

Apr 20

SEA7:10 pmSeattle/Tacoma Intl

20h 25m

1 stop

LIS11:35 pmLisbon Humberto Delgado

May 8

LIS4:45 pmLisbon Humberto Delgado

32h 30m

1 stop

SEA5:15 pmSeattle/Tacoma Intl

$661

Turkish Airlines

Apr 20

SEA7:10 pmSeattle/Tacoma Intl

20h 25m

1 stop

LIS11:35 pmLisbon Humberto Delgado

Apr 28

LIS10:55 amLisbon Humberto Delgado

38h 20m

1 stop

SEA5:15 pmSeattle/Tacoma Intl

$663

Turkish Airlines

Mar 31

SEA7:10 pmSeattle/Tacoma Intl

36h 25m

1 stop

LIS3:35 pmLisbon Humberto Delgado

Apr 21

LIS10:55 amLisbon Humberto Delgado

38h 20m

1 stop

SEA5:15 pmSeattle/Tacoma Intl

$664

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Sun 4/19

6:50 pm-10:45 pm

1 stop19h 55m

Lisbon Humberto Delgado

Tue 4/28

6:15 am-10:42 pm

2 stops24h 27m

$622

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Sun 4/19

6:50 pm-10:45 pm

1 stop19h 55m

Lisbon Humberto Delgado

Tue 4/28

5:05 am-12:20 pm

1 stop15h 15m

$630

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Mon 4/20

2:10 pm-11:35 pm

1 stop25h 25m

Lisbon Humberto Delgado

Mon 4/27

5:05 am-12:20 pm

1 stop15h 15m

$633

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Thu 4/23

7:10 pm-9:35 pm

1 stop18h 25m

Lisbon Humberto Delgado

Fri 5/8

10:15 pm-5:10 pm

1 stop26h 55m

$647

Quickest round-trip

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Mon 4/20

8:00 am-9:20 am

2 stops17h 20m

Lisbon Humberto Delgado

Mon 4/27

5:05 am-12:20 pm

1 stop15h 15m

$650

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Wed 4/29

8:20 pm-11:15 pm

1 stop18h 55m

Lisbon Humberto Delgado

Wed 5/6

11:05 am-9:23 pm

1 stop18h 18m

$656

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Fri 4/17

6:50 pm-10:45 pm

1 stop19h 55m

Lisbon Humberto Delgado

Tue 4/21

5:05 am-12:20 pm

1 stop15h 15m

$657

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sun 4/19

7:30 pm-11:05 pm

1 stop19h 35m

Lisbon Humberto Delgado

Mon 4/27

8:25 am-11:54 pm

2 stops23h 29m

$662

SpokaneLisbon

GEG - LIS

GEGLIS

Spokane

Sun 4/19

1:46 pm-10:45 pm

2 stops48h 59m

Lisbon Humberto Delgado

Mon 5/4

1:00 pm-9:16 pm

2 stops40h 16m

$669

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Fri 4/17

7:30 pm-11:10 pm

1 stop19h 40m

Lisbon Humberto Delgado

Sun 5/3

7:20 am-10:56 pm

2 stops23h 36m

$681

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 $492. 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 $552.

How far in advance should I book a flight 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 $812 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 $735 on momondo.

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

You could potentially save up to 6% 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 35m
Direct flights	None

The fastest flight from State of Washington to Lisbon takes 13h 35m

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

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 March 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 7.0 625 reviews	Search Icelandair flights
British Airways	PriceFrom $482	Free Cancellation	Rating 6.7 7,813 reviews	Search British Airways flights
Lufthansa	PriceFrom $484	Free Cancellation	Rating 6.8 7,864 reviews	Search Lufthansa flights
United Airlines	PriceFrom $494	Free Cancellation	Rating 7.4 9,467 reviews	Search United Airlines flights
Delta	PriceFrom $499	Free Cancellation	Rating 7.9 8,320 reviews	Search Delta flights
KLM	PriceFrom $503	Free Cancellation	Rating 7.8 1,477 reviews	Search KLM flights
Air France	PriceFrom $526	Free Cancellation	Rating 7.4 1,550 reviews	Search Air France flights
Air Canada	PriceFrom $543	Free Cancellation	Rating 7.1 10,836 reviews	Search Air Canada flights
Aer Lingus	PriceFrom $553	Free Cancellation	Rating 7.2 1,487 reviews	Search Aer Lingus flights
American Airlines	PriceFrom $558	Free Cancellation	Rating 7.1 11,492 reviews	Search American Airlines flights

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Tomar

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Torres Vedras

Comporta

Almada

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Why should I use momondo to find a flight deal from Washington to Lisbon?

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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.

How can momondo help me find flights from Washington to Lisbon?

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.

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

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 $242

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 4/20. 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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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 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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