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Cheap flights from Lisbon to Seattle from $314

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 8/27. 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

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
6:15 am - 9:40 am
LIS
-
SEA
35h 25m
3 stops
Multiple Airlines Logo
3:40 pm - 8:30 am
SEA
-
LIS
32h 50m
3 stops
$666Multiple Airlines
Tue, Aug 25 - Sun, Aug 30
Multiple Airlines Logo
6:15 am - 9:40 am
LIS
-
SEA
35h 25m
2 stops
Multiple Airlines Logo
3:40 pm - 8:30 am
SEA
-
LIS
32h 50m
3 stops
$669Multiple Airlines
Tue, Aug 25 - Sun, Aug 30
Multiple Airlines Logo
6:15 am - 9:40 am
LIS
-
SEA
35h 25m
2 stops
Multiple Airlines Logo
3:40 pm - 10:05 pm
SEA
-
LIS
22h 25m
2 stops
$674Multiple Airlines
Tue, Aug 25 - Sun, Aug 30
Multiple Airlines Logo
6:15 am - 9:40 am
LIS
-
SEA
35h 25m
3 stops
Multiple Airlines Logo
7:00 am - 7:45 pm
SEA
-
LIS
28h 45m
3 stops
$788Multiple Airlines
Mon, Aug 24 - Sun, Sep 6
Multiple Airlines Logo
6:15 am - 9:40 am
LIS
-
SEA
35h 25m
2 stops
Multiple Airlines Logo
7:10 pm - 9:00 am
SEA
-
LIS
29h 50m
1 stop
$796Multiple Airlines
Tue, Aug 25 - Sun, Aug 30
Multiple Airlines Logo
6:15 am - 9:40 am
LIS
-
SEA
35h 25m
3 stops
Multiple Airlines Logo
8:20 pm - 10:05 am
SEA
-
LIS
29h 45m
1 stop
$829Multiple Airlines
Mon, Aug 24 - Sun, Sep 6
Multiple Airlines Logo
6:15 am - 9:40 am
LIS
-
SEA
35h 25m
3 stops
Multiple Airlines Logo
3:40 pm - 8:55 pm
SEA
-
LIS
21h 15m
2 stops
$841Multiple Airlines
Mon, Aug 24 - Sun, Sep 6
Scandinavian Airlines Logo
8:55 pm - 1:45 pm
LIS
-
SEA
24h 50m
1 stop
Scandinavian Airlines Logo
3:55 pm - 10:05 pm
SEA
-
LIS
22h 10m
1 stop
$846Scandinavian Airlines
Fri, Aug 21 - Fri, Sep 4
Multiple Airlines Logo
6:15 am - 9:40 am
LIS
-
SEA
35h 25m
3 stops
Multiple Airlines Logo
3:40 pm - 11:15 pm
SEA
-
LIS
23h 35m
2 stops
$859Multiple Airlines
Mon, Aug 24 - Sun, Sep 6
Scandinavian Airlines Logo
8:55 pm - 1:45 pm
LIS
-
SEA
24h 50m
1 stop
Scandinavian Airlines Logo
3:55 pm - 10:05 pm
SEA
-
LIS
22h 10m
1 stop
$895Scandinavian Airlines
Fri, Aug 21 - Fri, Sep 4

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United Airlines flights from Lisbon to Seattle

Our best United Airlines deals on Lisbon to Seattle flight tickets
United Airlines
Sep 25
LIS5:05 amLisbon Humberto Delgado
14h 50m
1 stop
SEA11:55 amSeattle/Tacoma Intl
Sep 28
SEA7:00 amSeattle/Tacoma Intl
17h 20m
1 stop
LIS8:20 amLisbon Humberto Delgado
$971
United Airlines
Sep 25
LIS5:05 amLisbon Humberto Delgado
14h 50m
1 stop
SEA11:55 amSeattle/Tacoma Intl
Sep 28
SEA8:30 amSeattle/Tacoma Intl
15h 50m
2 stops
LIS8:20 amLisbon Humberto Delgado
$972
United Airlines
Sep 25
LIS5:05 amLisbon Humberto Delgado
14h 50m
1 stop
SEA11:55 amSeattle/Tacoma Intl
Sep 28
SEA7:00 amSeattle/Tacoma Intl
17h 20m
1 stop
LIS8:20 amLisbon Humberto Delgado
$973

Scandinavian Airlines flights from Lisbon to Seattle

Our best Scandinavian Airlines deals on Lisbon to Seattle flight tickets
Scandinavian Airlines
Aug 21
LIS8:55 pmLisbon Humberto Delgado
24h 50m
1 stop
SEA1:45 pmSeattle/Tacoma Intl
Sep 4
SEA3:55 pmSeattle/Tacoma Intl
22h 10m
1 stop
LIS10:05 pmLisbon Humberto Delgado
$846
Scandinavian Airlines
Aug 21
LIS8:55 pmLisbon Humberto Delgado
24h 50m
1 stop
SEA1:45 pmSeattle/Tacoma Intl
Sep 4
SEA3:55 pmSeattle/Tacoma Intl
22h 10m
1 stop
LIS10:05 pmLisbon Humberto Delgado
$895
Scandinavian Airlines
Aug 21
LIS8:55 pmLisbon Humberto Delgado
24h 50m
1 stop
SEA1:45 pmSeattle/Tacoma Intl
Sep 4
SEA3:55 pmSeattle/Tacoma Intl
22h 10m
1 stop
LIS10:05 pmLisbon Humberto Delgado
$897

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 July 1, 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

Tue 8/25

6:15 am-9:40 am

3 stops35h 25m

Seattle/Tacoma Intl

Sun 8/30

3:40 pm-8:30 am

3 stops32h 50m

$666

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Tue 8/25

6:15 am-9:40 am

2 stops35h 25m

Seattle/Tacoma Intl

Sun 8/30

3:40 pm-8:30 am

3 stops32h 50m

$669

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Tue 8/25

6:15 am-9:40 am

2 stops35h 25m

Seattle/Tacoma Intl

Sun 8/30

3:40 pm-10:05 pm

2 stops22h 25m

$674

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Mon 8/24

6:15 am-9:40 am

3 stops35h 25m

Seattle/Tacoma Intl

Sun 9/6

7:00 am-7:45 pm

3 stops28h 45m

$788

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Tue 8/25

6:15 am-9:40 am

2 stops35h 25m

Seattle/Tacoma Intl

Sun 8/30

7:10 pm-9:00 am

1 stop29h 50m

$796

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Mon 8/24

6:15 am-9:40 am

3 stops35h 25m

Seattle/Tacoma Intl

Sun 9/6

8:20 pm-10:05 am

1 stop29h 45m

$829

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Mon 8/24

6:15 am-9:40 am

3 stops35h 25m

Seattle/Tacoma Intl

Sun 9/6

3:40 pm-8:55 pm

2 stops21h 15m

$841
Quickest round-trip

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Fri 8/21

8:55 pm-1:45 pm

1 stop24h 50m

Seattle/Tacoma Intl

Fri 9/4

3:55 pm-10:05 pm

1 stop22h 10m

$846

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Mon 8/24

6:15 am-9:40 am

3 stops35h 25m

Seattle/Tacoma Intl

Sun 9/6

3:40 pm-11:15 pm

2 stops23h 35m

$859

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Fri 8/21

8:55 pm-1:45 pm

1 stop24h 50m

Seattle/Tacoma Intl

Fri 9/4

3:55 pm-10:05 pm

1 stop22h 10m

$895

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, October 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 $888. If you don’t want to visit Seattle in October, 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 7% 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 July 2026, prices for Lisbon to Seattle flights are approximately 20% 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

Fastest flight time

17h 17m

Direct flights

None
The fastest flight from Lisbon to Seattle takes 17h 17m
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 17h 17m.

  • 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 $1,040Free CancellationRating
7.8
8,452 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
Redmond
Kent
Lakewood
Puyallup
Tukwila
Cle Elum
Federal Way
Fife
Marysville
Centralia
Kirkland
Shoreline
Westport

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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