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Cheap flights from Lisbon to Seattle from $346

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Lisbon to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:10 am - 9:40 amLIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
35h 30m2 stops Halifax Intl Calgary
Multiple Airlines Logo
7:10 pm - 9:00 amSEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
29h 50m1 stop Dublin
$791Multiple Airlines
Thu, Sep 17 - Tue, Oct 13
Multiple Airlines Logo
6:10 am - 9:40 amLIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
35h 30m2 stops Halifax Intl Calgary
Multiple Airlines Logo
7:10 pm - 6:55 pmSEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
15h 45m1 stop Dublin
$794Multiple Airlines
Thu, Sep 17 - Mon, Oct 12
Multiple Airlines Logo
6:15 am - 9:40 amLIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
35h 25m2 stops Halifax Intl Calgary
Multiple Airlines Logo
7:10 pm - 9:00 amSEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
29h 50m1 stop Dublin
$797Multiple Airlines
Tue, Sep 15 - Tue, Oct 13
Multiple Airlines Logo
6:15 am - 9:40 amLIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
35h 25m2 stops Halifax Intl Calgary
Multiple Airlines Logo
7:10 pm - 6:55 pmSEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
15h 45m1 stop Dublin
$799Multiple Airlines
Tue, Sep 15 - Mon, Oct 12
Multiple Airlines Logo
6:10 am - 9:40 amLIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
35h 30m2 stops Halifax Intl Calgary
Multiple Airlines Logo
7:10 pm - 5:50 pmSEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
14h 40m1 stop Dublin
$838Multiple Airlines
Thu, Sep 17 - Wed, Oct 14
Multiple Airlines Logo
6:15 am - 9:40 amLIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
35h 25m2 stops Halifax Intl Calgary
Multiple Airlines Logo
7:10 pm - 5:50 pmSEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
14h 40m1 stop Dublin
$843Multiple Airlines
Tue, Sep 15 - Wed, Oct 14
Aer Lingus Logo
10:15 pm - 5:10 pmLIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
26h 55m1 stop Dublin
Aer Lingus Logo
7:10 pm - 9:35 pmSEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
18h 25m1 stop Dublin
$862Aer Lingus
Sat, Sep 26 - Mon, Oct 12
Multiple Airlines Logo
4:05 pm - 5:55 pmLIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
33h 50m2 stops London Heathrow Reykjavik Keflavik Intl
Multiple Airlines Logo
7:00 pm - 11:40 pmSEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
20h 40m2 stops Reykjavik Keflavik Intl London Gatwick
$866Multiple Airlines
Wed, Sep 23 - Wed, Sep 30
Delta Logo
5:00 am - 11:47 amLIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
14h 47m1 stop Amsterdam Schiphol
Delta Logo
7:15 am - 11:15 amSEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
20h 00m2 stops New York John F Kennedy Intl Paris Charles de Gaulle
$974Delta
Wed, Sep 23 - Wed, Sep 30
Delta Logo
5:00 am - 12:47 pmLIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
14h 47m1 stop Amsterdam Schiphol
Delta Logo
4:05 pm - 3:10 pmSEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
15h 05m1 stop Paris Charles de Gaulle
$974Delta
Tue, Oct 27 - Tue, Nov 10

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Delta flights from Lisbon to Seattle

Our best Delta deals on Lisbon to Seattle flight tickets
Delta
Sep 22
LIS5:00 amLisbon Humberto Delgado
14h 47m
1 stop
SEA11:47 amSeattle/Tacoma Intl
Oct 2
SEA9:40 amSeattle/Tacoma Intl
21h 15m
2 stops
LIS2:55 pmLisbon Humberto Delgado
$975
Delta
Sep 22
LIS5:00 amLisbon Humberto Delgado
14h 47m
1 stop
SEA11:47 amSeattle/Tacoma Intl
Oct 2
SEA9:40 amSeattle/Tacoma Intl
21h 15m
2 stops
LIS2:55 pmLisbon Humberto Delgado
$978
Delta
Sep 16
LIS5:00 amLisbon Humberto Delgado
14h 47m
1 stop
SEA11:47 amSeattle/Tacoma Intl
Oct 14
SEA7:24 amSeattle/Tacoma Intl
19h 31m
2 stops
LIS10:55 amLisbon Humberto Delgado
$979

British Airways flights from Lisbon to Seattle

Our best British Airways deals on Lisbon to Seattle flight tickets
British Airways
Aug 27
LIS11:05 amLisbon Humberto Delgado
19h 51m
1 stop
SEA10:56 pmSeattle/Tacoma Intl
Aug 31
SEA8:20 pmSeattle/Tacoma Intl
18h 50m
1 stop
LIS11:10 pmLisbon Humberto Delgado
$1,034
British Airways
Aug 25
LIS4:30 pmLisbon Humberto Delgado
27h 05m
1 stop
SEA11:35 amSeattle/Tacoma Intl
Sep 8
SEA8:10 amSeattle/Tacoma Intl
16h 55m
1 stop
LIS9:05 amLisbon Humberto Delgado
$1,107

momondo Fare Finder

 
Use the filters below to find and compare flights from Lisbon to Seattle that are best for you.

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Route

Depart

Return

Price

Cheapest round-trip

LisbonSeattle

LIS Lisbon Humberto Delgado - SEA Seattle/Tacoma Intl

LISSEA

Lisbon Humberto Delgado

Thu 9/17

6:10 am-9:40 am

2 stops35h 30m

Seattle/Tacoma Intl

Tue 10/13

7:10 pm-9:00 am

1 stop29h 50m

$791

LisbonSeattle

LIS Lisbon Humberto Delgado - SEA Seattle/Tacoma Intl

LISSEA

Lisbon Humberto Delgado

Thu 9/17

6:10 am-9:40 am

2 stops35h 30m

Seattle/Tacoma Intl

Mon 10/12

7:10 pm-6:55 pm

1 stop15h 45m

$794

LisbonSeattle

LIS Lisbon Humberto Delgado - SEA Seattle/Tacoma Intl

LISSEA

Lisbon Humberto Delgado

Tue 9/15

6:15 am-9:40 am

2 stops35h 25m

Seattle/Tacoma Intl

Tue 10/13

7:10 pm-9:00 am

1 stop29h 50m

$797

LisbonSeattle

LIS Lisbon Humberto Delgado - SEA Seattle/Tacoma Intl

LISSEA

Lisbon Humberto Delgado

Tue 9/15

6:15 am-9:40 am

2 stops35h 25m

Seattle/Tacoma Intl

Mon 10/12

7:10 pm-6:55 pm

1 stop15h 45m

$799

LisbonSeattle

LIS Lisbon Humberto Delgado - SEA Seattle/Tacoma Intl

LISSEA

Lisbon Humberto Delgado

Thu 9/17

6:10 am-9:40 am

2 stops35h 30m

Seattle/Tacoma Intl

Wed 10/14

7:10 pm-5:50 pm

1 stop14h 40m

$838

LisbonSeattle

LIS Lisbon Humberto Delgado - SEA Seattle/Tacoma Intl

LISSEA

Lisbon Humberto Delgado

Tue 9/15

6:15 am-9:40 am

2 stops35h 25m

Seattle/Tacoma Intl

Wed 10/14

7:10 pm-5:50 pm

1 stop14h 40m

$843

LisbonSeattle

LIS Lisbon Humberto Delgado - SEA Seattle/Tacoma Intl

LISSEA

Lisbon Humberto Delgado

Sat 9/26

10:15 pm-5:10 pm

1 stop26h 55m

Seattle/Tacoma Intl

Mon 10/12

7:10 pm-9:35 pm

1 stop18h 25m

$862

LisbonSeattle

LIS Lisbon Humberto Delgado - SEA Seattle/Tacoma Intl

LISSEA

Lisbon Humberto Delgado

Wed 9/23

4:05 pm-5:55 pm

2 stops33h 50m

Seattle/Tacoma Intl

Wed 9/30

7:00 pm-11:40 pm

2 stops20h 40m

$866

LisbonSeattle

LIS Lisbon Humberto Delgado - SEA Seattle/Tacoma Intl

LISSEA

Lisbon Humberto Delgado

Wed 9/23

5:00 am-11:47 am

1 stop14h 47m

Seattle/Tacoma Intl

Wed 9/30

7:15 am-11:15 am

2 stops20h 00m

$974
Quickest round-trip

LisbonSeattle

LIS Lisbon Humberto Delgado - SEA Seattle/Tacoma Intl

LISSEA

Lisbon Humberto Delgado

Tue 10/27

5:00 am-12:47 pm

1 stop14h 47m

Seattle/Tacoma Intl

Tue 11/10

4:05 pm-3:10 pm

1 stop15h 05m

$974

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 Seattle from

How to get the cheapest flight ticket from Lisbon to Seattle

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 Lisbon and Seattle?

Prices are currently low for flights on this route.

Typical prices usually range from $941 to $1,391.
The lowest price recently found on this route was $791.

What is the cheapest month to fly to Seattle?

In general, December is the cheapest month to fly from Lisbon to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $880. If you don’t want to visit Seattle in December, then you should wait until February to fly from Lisbon, when ticket prices are also cheap, with an average price of $897.

Can stopping save me money on Lisbon to Seattle flights?

You could potentially save up to 13% on your flight if you consider stops on a Lisbon to Seattle flight.

How have Lisbon to Seattle flight prices changed over time?

As of August 2026, prices for Lisbon to Seattle flights are approximately 3% cheaper when compared to flights at the same time last year.

When to book flights from Lisbon to Seattle

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

Cheap Lisbon to Seattle (LIS to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Lisbon to Seattle

Best Price Found

$346

Fastest flight time

14h 47m

Direct flights

None
The best one-way flight to Seattle from Lisbon in the past 72 hours is $346. The best round-trip flight deal from Lisbon to Seattle found on momondo in the last 72 hours is $791.
The fastest flight from Lisbon to Seattle takes 14h 47m
There are no direct flights from Lisbon to Seattle. There are no popular flight routes from Lisbon to Seattle.
Search flight deals

Frequently asked questions about flying from Lisbon to Seattle

  • How far is Lisbon Humberto Delgado to Seattle/Tacoma Intl by plane?

    A flight from Lisbon Humberto Delgado to Seattle/Tacoma Intl will travel around 5195.1 mi. In terms of flight time, this usually takes a little over 14h 47m.

  • When did momondo last update prices for flights from Lisbon Humberto Delgado Airport to Seattle/Tacoma Intl Airport?

    Prices for flights from Lisbon Humberto Delgado Airport to Seattle/Tacoma Intl Airport refresh daily.

  • How many operators does momondo search for flights from Lisbon Humberto Delgado Airport to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from Lisbon Humberto Delgado Airport to Seattle/Tacoma Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lisbon Humberto Delgado Airport to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Lisbon to Seattle?

Best airlines flying from Lisbon to Seattle

Compare and see reviews for airlines that fly from Lisbon to Seattle with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $1,041Free CancellationRating
7.8
8,505 reviews
Search Delta flights

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac
Ocean Shores
Renton
Kent
Olympia
Lynnwood
Redmond
Lakewood
Federal Way
Puyallup
Fife
Tukwila
Cle Elum
Marysville
Kirkland
Lacey
Shoreline
Centralia

Why use momondo?

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

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

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

Yes. momondo enables you to select and highlight flights to Seattle from Lisbon with this policy.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Lisbon to Seattle.

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

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

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