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Cheap flights from Lisbon to Seattle from $366

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
10:10 pm - 5:10 pmLIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
27h 00m2 stops Barcelona-El Prat Dublin
Multiple Airlines Logo
7:10 pm - 9:55 pmSEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
18h 45m1 stop Dublin
$560Multiple Airlines
Fri, Sep 25 - Sat, Oct 10
Multiple Airlines Logo
10:10 pm - 5:10 pmLIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
27h 00m2 stops Barcelona-El Prat Dublin
Multiple Airlines Logo
7:10 pm - 8:30 amSEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
29h 20m2 stops Dublin Barcelona-El Prat
$606Multiple Airlines
Fri, Sep 25 - Sat, Oct 10
Multiple Airlines Logo
6:15 am - 6:45 pmLIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
44h 30m2 stops Halifax Intl Calgary
Multiple Airlines Logo
7:10 pm - 8:45 pmSEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
17h 35m1 stop Dublin
$766Multiple Airlines
Tue, Sep 22 - Tue, Sep 29
Multiple Airlines Logo
5:55 am - 10:15 amLIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
36h 20m2 stops Dublin Newark
Multiple Airlines Logo
7:10 pm - 9:00 amSEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
29h 50m1 stop Dublin
$776Multiple Airlines
Sun, Oct 4 - Sun, Oct 11
Multiple Airlines Logo
9:55 am - 11:55 amLIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
34h 00m3 stops London Stansted Munich Franz Josef Strauss Frankfurt am Main
Multiple Airlines Logo
6:50 pm - 10:30 pmSEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
19h 40m2 stops Munich Franz Josef Strauss London Stansted
$794Multiple Airlines
Tue, Sep 22 - Tue, Sep 29
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
3:55 pm - 10:45 pmSEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
22h 50m2 stops Kastrup Copenhagen Munich Franz Josef Strauss
$804Multiple Airlines
Tue, Sep 22 - Tue, Sep 29
Multiple Airlines Logo
2:30 pm - 5:10 pmLIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
34h 40m3 stops Geneva Geneve-Cointrin Zurich Dublin
Multiple Airlines Logo
7:10 pm - 8:30 amSEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
29h 20m2 stops Dublin Barcelona-El Prat
$807Multiple Airlines
Fri, Sep 25 - Sat, Oct 10
Multiple Airlines Logo
9:55 am - 11:55 amLIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
34h 00m3 stops London Stansted Munich Franz Josef Strauss Frankfurt am Main
Multiple Airlines Logo
2:10 pm - 10:30 pmSEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
24h 20m3 stops Frankfurt am Main Munich Franz Josef Strauss London Stansted
$819Multiple Airlines
Tue, Sep 22 - Tue, Sep 29
Delta Logo
5:00 am - 4:35 pmLIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
19h 35m1 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
$981Delta
Sun, Sep 20 - Sat, Oct 3
Delta Logo
5:00 am - 4:35 pmLIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
19h 35m1 stop Amsterdam Schiphol
Delta Logo
7:15 am - 11:15 amSEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
20h 00m2 stops Chicago O'Hare Intl Paris Charles de Gaulle
$981Delta
Fri, Sep 11 - Fri, Sep 25

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Icelandair flights from Lisbon to Seattle

Our best Icelandair deals on Lisbon to Seattle flight tickets
Icelandair
Oct 8
LIS3:00 pmLisbon Humberto Delgado
13h 40m
1 stop
SEA8:40 pmSeattle/Tacoma Intl
Oct 23
SEA7:00 pmSeattle/Tacoma Intl
34h 50m
1 stop
LIS1:50 pmLisbon Humberto Delgado
$911
Icelandair
Dec 15
LIS2:00 pmLisbon Humberto Delgado
35h 00m
1 stop
SEA5:00 pmSeattle/Tacoma Intl
Dec 26
SEA2:35 pmSeattle/Tacoma Intl
14h 15m
1 stop
LIS12:50 pmLisbon Humberto Delgado
$922
Icelandair
Oct 8
LIS3:00 pmLisbon Humberto Delgado
34h 55m
1 stop
SEA5:55 pmSeattle/Tacoma Intl
Oct 23
SEA7:00 pmSeattle/Tacoma Intl
34h 50m
1 stop
LIS1:50 pmLisbon Humberto Delgado
$924

Lufthansa flights from Lisbon to Seattle

Our best Lufthansa deals on Lisbon to Seattle flight tickets
Lufthansa
Dec 20
LIS5:00 amLisbon Humberto Delgado
15h 00m
1 stop
SEA12:00 pmSeattle/Tacoma Intl
Jan 4
SEA1:12 pmSeattle/Tacoma Intl
13h 08m
1 stop
LIS10:20 amLisbon Humberto Delgado
$985
Lufthansa
Dec 15
LIS12:20 pmLisbon Humberto Delgado
31h 40m
1 stop
SEA12:00 pmSeattle/Tacoma Intl
Dec 27
SEA1:50 pmSeattle/Tacoma Intl
25h 00m
1 stop
LIS10:50 pmLisbon Humberto Delgado
$1,007

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

Fri 9/25

10:10 pm-5:10 pm

2 stops27h 00m

Seattle/Tacoma Intl

Sat 10/10

7:10 pm-9:55 pm

1 stop18h 45m

$560

LisbonSeattle

LIS Lisbon Humberto Delgado - SEA Seattle/Tacoma Intl

LISSEA

Lisbon Humberto Delgado

Fri 9/25

10:10 pm-5:10 pm

2 stops27h 00m

Seattle/Tacoma Intl

Sat 10/10

7:10 pm-8:30 am

2 stops29h 20m

$606

LisbonSeattle

LIS Lisbon Humberto Delgado - SEA Seattle/Tacoma Intl

LISSEA

Lisbon Humberto Delgado

Tue 9/22

6:15 am-6:45 pm

2 stops44h 30m

Seattle/Tacoma Intl

Tue 9/29

7:10 pm-8:45 pm

1 stop17h 35m

$766

LisbonSeattle

LIS Lisbon Humberto Delgado - SEA Seattle/Tacoma Intl

LISSEA

Lisbon Humberto Delgado

Sun 10/4

5:55 am-10:15 am

2 stops36h 20m

Seattle/Tacoma Intl

Sun 10/11

7:10 pm-9:00 am

1 stop29h 50m

$776

LisbonSeattle

LIS Lisbon Humberto Delgado - SEA Seattle/Tacoma Intl

LISSEA

Lisbon Humberto Delgado

Tue 9/22

9:55 am-11:55 am

3 stops34h 00m

Seattle/Tacoma Intl

Tue 9/29

6:50 pm-10:30 pm

2 stops19h 40m

$794

LisbonSeattle

LIS Lisbon Humberto Delgado - SEA Seattle/Tacoma Intl

LISSEA

Lisbon Humberto Delgado

Tue 9/22

6:15 am-9:40 am

2 stops35h 25m

Seattle/Tacoma Intl

Tue 9/29

3:55 pm-10:45 pm

2 stops22h 50m

$804

LisbonSeattle

LIS Lisbon Humberto Delgado - SEA Seattle/Tacoma Intl

LISSEA

Lisbon Humberto Delgado

Fri 9/25

2:30 pm-5:10 pm

3 stops34h 40m

Seattle/Tacoma Intl

Sat 10/10

7:10 pm-8:30 am

2 stops29h 20m

$807

LisbonSeattle

LIS Lisbon Humberto Delgado - SEA Seattle/Tacoma Intl

LISSEA

Lisbon Humberto Delgado

Tue 9/22

9:55 am-11:55 am

3 stops34h 00m

Seattle/Tacoma Intl

Tue 9/29

2:10 pm-10:30 pm

3 stops24h 20m

$819
Quickest round-trip

LisbonSeattle

LIS Lisbon Humberto Delgado - SEA Seattle/Tacoma Intl

LISSEA

Lisbon Humberto Delgado

Sun 9/20

5:00 am-4:35 pm

1 stop19h 35m

Seattle/Tacoma Intl

Sat 10/3

7:15 am-11:15 am

2 stops20h 00m

$981

LisbonSeattle

LIS Lisbon Humberto Delgado - SEA Seattle/Tacoma Intl

LISSEA

Lisbon Humberto Delgado

Fri 9/11

5:00 am-4:35 pm

1 stop19h 35m

Seattle/Tacoma Intl

Fri 9/25

7:15 am-11:15 am

2 stops20h 00m

$981

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 $940 to $1,391.
The lowest price recently found on this route was $560.

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 15% 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

$366

Fastest flight time

13h 40m

Direct flights

None
The best one-way flight to Seattle from Lisbon in the past 72 hours is $366. The best round-trip flight deal from Lisbon to Seattle found on momondo in the last 72 hours is $560.
The fastest flight from Lisbon to Seattle takes 13h 40m
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 13h 40m.

  • 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
8,529 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
Redmond
Lynnwood
Lakewood
Federal Way
Puyallup
Tukwila
Fife
Cle Elum
Marysville
Kirkland
Shoreline
Centralia
Lacey

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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