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Cheap flights from Lisbon to Seattle from $341

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Lisbon to Seattle departing on 5/19. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Lisbon to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
Aer Lingus Logo
10:15 pm - 5:10 pm
LIS
-
SEA
26h 55m
1 stop
Aer Lingus Logo
7:10 pm - 9:35 pm
SEA
-
LIS
18h 25m
1 stop
$729Aer Lingus
Fri, May 1 - Sat, May 16
Scandinavian Airlines Logo
7:00 am - 10:45 pm
LIS
-
SEA
23h 45m
2 stops
Scandinavian Airlines Logo
3:55 pm - 3:35 pm
SEA
-
LIS
15h 40m
1 stop
$861Scandinavian Airlines
Thu, May 14 - Fri, May 29
Multiple Airlines Logo
9:35 am - 7:23 pm
LIS
-
SEA
17h 48m
1 stop
Multiple Airlines Logo
7:00 pm - 9:05 pm
SEA
-
LIS
42h 05m
2 stops
$865Multiple Airlines
Fri, Apr 24 - Sat, May 9
Multiple Airlines Logo
9:35 am - 7:23 pm
LIS
-
SEA
17h 48m
1 stop
Multiple Airlines Logo
7:00 pm - 9:05 pm
SEA
-
LIS
42h 05m
2 stops
$874Multiple Airlines
Fri, Apr 24 - Sat, May 9
Scandinavian Airlines Logo
4:25 pm - 1:45 pm
LIS
-
SEA
29h 20m
1 stop
Scandinavian Airlines Logo
3:55 pm - 3:35 pm
SEA
-
LIS
15h 40m
1 stop
$885Scandinavian Airlines
Sat, Sep 5 - Fri, Sep 18
Turkish Airlines Logo
10:55 am - 5:15 pm
LIS
-
SEA
38h 20m
1 stop
Turkish Airlines Logo
7:10 pm - 11:45 pm
SEA
-
LIS
20h 35m
1 stop
$910Turkish Airlines
Wed, Apr 8 - Wed, Apr 22
KLM Logo
5:00 am - 11:37 am
LIS
-
SEA
14h 37m
1 stop
KLM Logo
1:55 pm - 2:35 pm
SEA
-
LIS
16h 40m
1 stop
$911KLM
Sat, Jun 6 - Mon, Jun 15
Turkish Airlines Logo
5:55 am - 5:15 pm
LIS
-
SEA
19h 20m
1 stop
Turkish Airlines Logo
7:10 pm - 3:45 pm
SEA
-
LIS
36h 35m
1 stop
$913Turkish Airlines
Wed, Apr 8 - Wed, Apr 22
Turkish Airlines Logo
10:55 am - 5:15 pm
LIS
-
SEA
38h 20m
1 stop
Turkish Airlines Logo
7:10 pm - 3:45 pm
SEA
-
LIS
36h 35m
1 stop
$918Turkish Airlines
Wed, Apr 8 - Wed, Apr 22
Multiple Airlines Logo
7:20 pm - 4:00 pm
LIS
-
SEA
28h 40m
2 stops
Multiple Airlines Logo
7:10 pm - 9:35 pm
SEA
-
LIS
18h 25m
1 stop
$919Multiple Airlines
Thu, Jun 4 - Tue, Oct 6

Delta flights from Lisbon to Seattle

Our best Delta deals on Lisbon to Seattle flight tickets
Delta
Jun 6
LIS5:00 amLisbon Humberto Delgado
19h 35m
2 stops
SEA4:35 pmSeattle/Tacoma Intl
Jun 15
SEA1:55 pmSeattle/Tacoma Intl
16h 40m
1 stop
LIS2:35 pmLisbon Humberto Delgado
$921
Delta
Apr 8
LIS5:00 amLisbon Humberto Delgado
19h 30m
1 stop
SEA4:30 pmSeattle/Tacoma Intl
Apr 22
SEA7:15 amSeattle/Tacoma Intl
19h 40m
2 stops
LIS10:55 amLisbon Humberto Delgado
$946
Delta
May 1
LIS5:00 amLisbon Humberto Delgado
22h 05m
2 stops
SEA7:05 pmSeattle/Tacoma Intl
May 16
SEA6:40 pmSeattle/Tacoma Intl
15h 10m
1 stop
LIS5:50 pmLisbon Humberto Delgado
$947

Turkish Airlines flights from Lisbon to Seattle

Our best Turkish Airlines deals on Lisbon to Seattle flight tickets
Turkish Airlines
Apr 8
LIS10:55 amLisbon Humberto Delgado
38h 20m
1 stop
SEA5:15 pmSeattle/Tacoma Intl
Apr 22
SEA7:10 pmSeattle/Tacoma Intl
20h 35m
1 stop
LIS11:45 pmLisbon Humberto Delgado
$910
Turkish Airlines
Apr 8
LIS5:55 amLisbon Humberto Delgado
19h 20m
1 stop
SEA5:15 pmSeattle/Tacoma Intl
Apr 22
SEA7:10 pmSeattle/Tacoma Intl
36h 35m
1 stop
LIS3:45 pmLisbon Humberto Delgado
$913
Turkish Airlines
Apr 8
LIS10:55 amLisbon Humberto Delgado
38h 20m
1 stop
SEA5:15 pmSeattle/Tacoma Intl
Apr 22
SEA7:10 pmSeattle/Tacoma Intl
36h 35m
1 stop
LIS3:45 pmLisbon Humberto Delgado
$918

momondo Fare Finder

 
Customize your flight search to find flights from Lisbon to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated March 24, 2026.
Use the filters below to find and compare flights from Lisbon to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Fri 5/1

10:15 pm-5:10 pm

1 stop26h 55m

Seattle/Tacoma Intl

Sat 5/16

7:10 pm-9:35 pm

1 stop18h 25m

$729

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Thu 5/14

7:00 am-10:45 pm

2 stops23h 45m

Seattle/Tacoma Intl

Fri 5/29

3:55 pm-3:35 pm

1 stop15h 40m

$861

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Fri 4/24

9:35 am-7:23 pm

1 stop17h 48m

Seattle/Tacoma Intl

Sat 5/9

7:00 pm-9:05 pm

2 stops42h 05m

$865

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Fri 4/24

9:35 am-7:23 pm

1 stop17h 48m

Seattle/Tacoma Intl

Sat 5/9

7:00 pm-9:05 pm

2 stops42h 05m

$874

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Sat 9/5

4:25 pm-1:45 pm

1 stop29h 20m

Seattle/Tacoma Intl

Fri 9/18

3:55 pm-3:35 pm

1 stop15h 40m

$885

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Wed 4/8

10:55 am-5:15 pm

1 stop38h 20m

Seattle/Tacoma Intl

Wed 4/22

7:10 pm-11:45 pm

1 stop20h 35m

$910
Quickest round-trip

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Sat 6/6

5:00 am-11:37 am

1 stop14h 37m

Seattle/Tacoma Intl

Mon 6/15

1:55 pm-2:35 pm

1 stop16h 40m

$911

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Wed 4/8

5:55 am-5:15 pm

1 stop19h 20m

Seattle/Tacoma Intl

Wed 4/22

7:10 pm-3:45 pm

1 stop36h 35m

$913

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Wed 4/8

10:55 am-5:15 pm

1 stop38h 20m

Seattle/Tacoma Intl

Wed 4/22

7:10 pm-3:45 pm

1 stop36h 35m

$918

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Thu 6/4

7:20 pm-4:00 pm

2 stops28h 40m

Seattle/Tacoma Intl

Tue 10/6

7:10 pm-9:35 pm

1 stop18h 25m

$919

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?

What is the cheapest month to fly to Seattle?

In general, February 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 $825. If you don’t want to visit Seattle in February, then you should wait until May to fly from Lisbon, when ticket prices are also cheap, with an average price of $844.

How have Lisbon to Seattle flight prices changed over time?

As of March 2026, prices for Lisbon to Seattle flights are approximately 19% more expensive 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

Fastest flight time

15h 15m

Direct flights

None
The fastest flight from Lisbon to Seattle takes 15h 15m
There are no direct flights from Lisbon to Seattle. There are no popular flight routes from Lisbon to Seattle.
Search flight deals

  • 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 15h 15m.

  • 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
Air FrancePriceFrom $762Free CancellationRating
7.4
1,550 reviews
Search Air France flights
DeltaPriceFrom $775Free CancellationRating
7.9
8,322 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
Olympia
Lynnwood
Kent
Redmond
Marysville
Puyallup
Cle Elum
Lakewood
Tukwila
Federal Way
Fife
Westport
Centralia
Kirkland
Tumwater

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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