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

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

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 35% 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.

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 55m on average, while flying from Spokane to Lisbon is 18h 24m on average. Lisbon is the most popular airport in 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 May 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.

$303 Cheap Flights from Washington to Lisbon in 2026

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One-way

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Cheap round-trip flights

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5:00 am - 8:10 am

GEG

LIS

19h 10m

3 stops

1:00 pm - 9:09 pm

LIS

GEG

40h 09m

2 stops

$728United Airlines

Wed, Nov 4 - Wed, Nov 11

5:45 pm - 5:45 pm

PDX

LIS

16h 00m

1 stop

6:30 am - 10:59 pm

LIS

PDX

24h 29m

2 stops

$796Multiple Airlines

Sun, Nov 1 - Tue, Nov 24

6:45 pm - 9:45 pm

PDX

LIS

20h 00m

1 stop

6:30 am - 10:59 pm

LIS

PDX

24h 29m

2 stops

$797Multiple Airlines

Sun, Oct 25 - Tue, Nov 3

1:28 pm - 3:35 pm

PDX

LIS

18h 07m

2 stops

11:05 am - 10:25 pm

LIS

PDX

19h 20m

2 stops

$812American Airlines

Tue, Oct 20 - Tue, Nov 10

3:55 pm - 3:35 pm

SEA

LIS

15h 40m

1 stop

4:25 pm - 1:45 pm

LIS

SEA

29h 20m

1 stop

$816Scandinavian Airlines

Fri, Oct 2 - Sat, Oct 10

12:00 pm - 4:05 pm

SEA

LIS

45h 05m

2 stops

4:55 pm - 12:18 am

LIS

SEA

39h 23m

2 stops

$820Scandinavian Airlines

Tue, Oct 27 - Mon, Nov 9

3:05 pm - 11:00 am

SEA

LIS

35h 55m

2 stops

5:00 am - 12:10 pm

LIS

SEA

15h 10m

1 stop

$822Lufthansa

Tue, Nov 3 - Tue, Nov 10

3:05 pm - 9:50 am

SEA

LIS

35h 45m

2 stops

5:00 am - 6:26 pm

LIS

SEA

21h 26m

2 stops

$823Air Canada

Sun, Oct 25 - Wed, Nov 11

3:10 pm - 11:30 pm

SEA

LIS

24h 20m

1 stop

5:00 am - 12:10 pm

LIS

SEA

15h 10m

1 stop

$827Lufthansa

Sun, Nov 1 - Wed, Nov 11

8:10 am - 11:00 am

SEA

LIS

19h 50m

1 stop

5:00 am - 9:56 pm

LIS

SEA

24h 56m

2 stops

$828Air Canada

Wed, Oct 28 - Fri, Nov 6

Turkish Airlines flights from State of Washington to Lisbon

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

Turkish Airlines

Sep 8

SEA7:10 pmSeattle/Tacoma Intl

30h 40m

1 stop

LIS9:50 amLisbon Humberto Delgado

Sep 29

LIS5:05 pmLisbon Humberto Delgado

32h 10m

1 stop

SEA5:15 pmSeattle/Tacoma Intl

$868

Turkish Airlines

Sep 8

SEA7:10 pmSeattle/Tacoma Intl

30h 40m

1 stop

LIS9:50 amLisbon Humberto Delgado

Sep 29

LIS10:55 amLisbon Humberto Delgado

38h 20m

1 stop

SEA5:15 pmSeattle/Tacoma Intl

$869

Turkish Airlines

Aug 25

SEA7:10 pmSeattle/Tacoma Intl

20h 10m

1 stop

LIS11:20 pmLisbon Humberto Delgado

Sep 4

LIS11:00 amLisbon Humberto Delgado

31h 40m

1 stop

SEA10:40 amSeattle/Tacoma Intl

$892

Iberia flights from State of Washington to Lisbon

Our best Iberia deals on State of Washington to Lisbon flight tickets

Iberia

Oct 27

PDX7:45 amPortland

16h 55m

2 stops

LIS7:40 amLisbon Humberto Delgado

Nov 4

LIS6:30 amLisbon Humberto Delgado

22h 50m

2 stops

PDX9:20 pmPortland

$811

Iberia

Oct 21

PDX11:55 amPortland

20h 10m

2 stops

LIS4:05 pmLisbon Humberto Delgado

Oct 28

LIS8:45 pmLisbon Humberto Delgado

22h 58m

2 stops

PDX12:43 pmPortland

$855

Iberia

Oct 16

PDX7:30 pmPortland

19h 55m

2 stops

LIS11:25 pmLisbon Humberto Delgado

Nov 2

LIS9:05 pmLisbon Humberto Delgado

50h 50m

2 stops

PDX3:55 pmPortland

$879

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SpokaneLisbon

GEG - LIS

GEGLIS

Spokane

Wed 11/4

5:00 am-8:10 am

3 stops19h 10m

Lisbon Humberto Delgado

Wed 11/11

1:00 pm-9:09 pm

2 stops40h 09m

$728

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sun 11/1

5:45 pm-5:45 pm

1 stop16h 00m

Lisbon Humberto Delgado

Tue 11/24

6:30 am-10:59 pm

2 stops24h 29m

$796

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sun 10/25

6:45 pm-9:45 pm

1 stop20h 00m

Lisbon Humberto Delgado

Tue 11/3

6:30 am-10:59 pm

2 stops24h 29m

$797

Quickest round-trip

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Tue 10/20

1:28 pm-3:35 pm

2 stops18h 07m

Lisbon Humberto Delgado

Tue 11/10

11:05 am-10:25 pm

2 stops19h 20m

$812

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Fri 10/2

3:55 pm-3:35 pm

1 stop15h 40m

Lisbon Humberto Delgado

Sat 10/10

4:25 pm-1:45 pm

1 stop29h 20m

$816

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Tue 10/27

12:00 pm-4:05 pm

2 stops45h 05m

Lisbon Humberto Delgado

Mon 11/9

4:55 pm-12:18 am

2 stops39h 23m

$820

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Tue 11/3

3:05 pm-11:00 am

2 stops35h 55m

Lisbon Humberto Delgado

Tue 11/10

5:00 am-12:10 pm

1 stop15h 10m

$822

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Sun 10/25

3:05 pm-9:50 am

2 stops35h 45m

Lisbon Humberto Delgado

Wed 11/11

5:00 am-6:26 pm

2 stops21h 26m

$823

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Sun 11/1

3:10 pm-11:30 pm

1 stop24h 20m

Lisbon Humberto Delgado

Wed 11/11

5:00 am-12:10 pm

1 stop15h 10m

$827

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Wed 10/28

8:10 am-11:00 am

1 stop19h 50m

Lisbon Humberto Delgado

Fri 11/6

5:00 am-9:56 pm

2 stops24h 56m

$828

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

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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 $339. If you are unable to visit Lisbon during the month of January, then departing from State of Washington during the month April is also very affordable. Most momondo users find prices during this month for around $390.

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 $816 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 $702 on momondo.

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 55m
Direct flights	None

The fastest flight from State of Washington to Lisbon takes 13h 55m

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

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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 May 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 7.0 652 reviews	Search Icelandair flights
Lufthansa	PriceFrom $482	Free Cancellation	Rating 6.8 7,988 reviews	Search Lufthansa flights
British Airways	PriceFrom $482	Free Cancellation	Rating 6.7 7,969 reviews	Search British Airways flights
United Airlines	PriceFrom $494	Free Cancellation	Rating 7.4 9,699 reviews	Search United Airlines flights
Delta	PriceFrom $499	Free Cancellation	Rating 7.9 8,451 reviews	Search Delta flights
KLM	PriceFrom $503	Free Cancellation	Rating 7.8 1,513 reviews	Search KLM flights
Air France	PriceFrom $505	Free Cancellation	Rating 7.4 1,585 reviews	Search Air France flights
Air Canada	PriceFrom $543	Free Cancellation	Rating 7.1 11,017 reviews	Search Air Canada flights
Aer Lingus	PriceFrom $553	Free Cancellation	Rating 7.3 1,551 reviews	Search Aer Lingus flights
American Airlines	PriceFrom $558	Free Cancellation	Rating 7.1 11,665 reviews	Search American Airlines 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.

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.

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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 $303

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 10/31. 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 from Washington to Lisbon?

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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