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Cheap flights from Lisbon to Seattle from $448

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
5:55 am - 5:00 pmLIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
19h 05m1 stop London Stansted
Multiple Airlines Logo
6:45 pm - 10:40 pmSEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
19h 55m1 stop London Heathrow
$760Multiple Airlines
Mon, Nov 2 - Sun, Nov 15
Multiple Airlines Logo
5:55 am - 5:00 pmLIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
19h 05m1 stop London Stansted
Multiple Airlines Logo
6:45 pm - 8:35 pmSEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
17h 50m1 stop London Heathrow
$765Multiple Airlines
Mon, Nov 2 - Sun, Nov 15
Multiple Airlines Logo
5:55 am - 5:00 pmLIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
19h 05m1 stop London Stansted
Multiple Airlines Logo
6:45 pm - 8:35 pmSEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
17h 50m1 stop London Heathrow
$772Multiple Airlines
Mon, Nov 2 - Sun, Nov 15
Multiple Airlines Logo
4:00 pm - 5:00 pmLIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
33h 00m3 stops Porto London Gatwick Reykjavik Keflavik Intl
Multiple Airlines Logo
2:35 pm - 11:00 pmSEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
24h 25m2 stops Reykjavik Keflavik Intl London Gatwick
$784Multiple Airlines
Sun, Nov 8 - Sun, Nov 15
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
3:35 pm - 10:55 pmSEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
24h 20m2 stops Reykjavik Keflavik Intl London Gatwick
$791Multiple Airlines
Wed, Oct 21 - Wed, Oct 28
Multiple Airlines Logo
4:00 pm - 5:00 pmLIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
33h 00m3 stops Porto London Gatwick Reykjavik Keflavik Intl
Multiple Airlines Logo
2:35 pm - 11:00 pmSEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
24h 25m2 stops Reykjavik Keflavik Intl London Gatwick
$791Multiple Airlines
Sun, Nov 8 - Sun, Nov 15
Turkish Airlines Logo
5:55 am - 6:10 pmLIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
20h 15m1 stop Istanbul
Turkish Airlines Logo
7:05 pm - 10:30 amSEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
31h 25m1 stop Istanbul
$793Turkish Airlines
Mon, Nov 2 - Sun, Nov 15
Turkish Airlines Logo
11:35 am - 5:10 pmLIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
37h 35m1 stop Istanbul
Turkish Airlines Logo
7:05 pm - 11:25 pmSEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
20h 20m1 stop Istanbul
$794Turkish Airlines
Thu, Nov 19 - Thu, Dec 3
Delta Logo
5:00 am - 4:35 pmLIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
19h 35m1 stop Amsterdam Schiphol
Delta Logo
11:05 am - 3:10 pmSEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
21h 05m2 stops Salt Lake City Paris Charles de Gaulle
$888Delta
Wed, Oct 21 - Wed, Oct 28
Delta Logo
5:00 am - 11:35 amLIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
14h 35m1 stop Amsterdam Schiphol
Delta Logo
7:15 am - 11:20 amSEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
20h 05m2 stops New York John F Kennedy Intl Paris Charles de Gaulle
$888Delta
Fri, Mar 5 - Wed, Mar 10

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Delta flights from Lisbon to Seattle

Our best Delta deals on Lisbon to Seattle flight tickets
Delta
Oct 21
LIS5:00 amLisbon Humberto Delgado
19h 35m
1 stop
SEA4:35 pmSeattle/Tacoma Intl
Oct 28
SEA11:05 amSeattle/Tacoma Intl
21h 05m
2 stops
LIS3:10 pmLisbon Humberto Delgado
$888
Delta
Nov 5
LIS5:00 amLisbon Humberto Delgado
19h 58m
2 stops
SEA4:58 pmSeattle/Tacoma Intl
Nov 12
SEA7:15 amSeattle/Tacoma Intl
20h 10m
2 stops
LIS11:25 amLisbon Humberto Delgado
$893
Delta
Nov 9
LIS5:00 amLisbon Humberto Delgado
20h 10m
2 stops
SEA5:10 pmSeattle/Tacoma Intl
Nov 16
SEA11:45 amSeattle/Tacoma Intl
19h 25m
2 stops
LIS3:10 pmLisbon Humberto Delgado
$910

Turkish Airlines flights from Lisbon to Seattle

Our best Turkish Airlines deals on Lisbon to Seattle flight tickets
Turkish Airlines
Nov 2
LIS5:55 amLisbon Humberto Delgado
20h 15m
1 stop
SEA6:10 pmSeattle/Tacoma Intl
Nov 15
SEA7:05 pmSeattle/Tacoma Intl
31h 25m
1 stop
LIS10:30 amLisbon Humberto Delgado
$793
Turkish Airlines
Nov 19
LIS11:35 amLisbon Humberto Delgado
37h 35m
1 stop
SEA5:10 pmSeattle/Tacoma Intl
Dec 3
SEA7:05 pmSeattle/Tacoma Intl
20h 20m
1 stop
LIS11:25 pmLisbon Humberto Delgado
$794
Turkish Airlines
Nov 2
LIS5:55 amLisbon Humberto Delgado
20h 15m
1 stop
SEA6:10 pmSeattle/Tacoma Intl
Nov 15
SEA7:05 pmSeattle/Tacoma Intl
31h 25m
1 stop
LIS10:30 amLisbon Humberto Delgado
$795

momondo Fare Finder

 
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 Lisbon Humberto Delgado - SEA Seattle/Tacoma Intl

LISSEA

Lisbon Humberto Delgado

Mon 11/2

5:55 am-5:00 pm

1 stop19h 05m

Seattle/Tacoma Intl

Sun 11/15

6:45 pm-10:40 pm

1 stop19h 55m

$760

LisbonSeattle

LIS Lisbon Humberto Delgado - SEA Seattle/Tacoma Intl

LISSEA

Lisbon Humberto Delgado

Mon 11/2

5:55 am-5:00 pm

1 stop19h 05m

Seattle/Tacoma Intl

Sun 11/15

6:45 pm-8:35 pm

1 stop17h 50m

$765

LisbonSeattle

LIS Lisbon Humberto Delgado - SEA Seattle/Tacoma Intl

LISSEA

Lisbon Humberto Delgado

Mon 11/2

5:55 am-5:00 pm

1 stop19h 05m

Seattle/Tacoma Intl

Sun 11/15

6:45 pm-8:35 pm

1 stop17h 50m

$772

LisbonSeattle

LIS Lisbon Humberto Delgado - SEA Seattle/Tacoma Intl

LISSEA

Lisbon Humberto Delgado

Sun 11/8

4:00 pm-5:00 pm

3 stops33h 00m

Seattle/Tacoma Intl

Sun 11/15

2:35 pm-11:00 pm

2 stops24h 25m

$784

LisbonSeattle

LIS Lisbon Humberto Delgado - SEA Seattle/Tacoma Intl

LISSEA

Lisbon Humberto Delgado

Wed 10/21

4:05 pm-5:55 pm

2 stops33h 50m

Seattle/Tacoma Intl

Wed 10/28

3:35 pm-10:55 pm

2 stops24h 20m

$791

LisbonSeattle

LIS Lisbon Humberto Delgado - SEA Seattle/Tacoma Intl

LISSEA

Lisbon Humberto Delgado

Sun 11/8

4:00 pm-5:00 pm

3 stops33h 00m

Seattle/Tacoma Intl

Sun 11/15

2:35 pm-11:00 pm

2 stops24h 25m

$791

LisbonSeattle

LIS Lisbon Humberto Delgado - SEA Seattle/Tacoma Intl

LISSEA

Lisbon Humberto Delgado

Mon 11/2

5:55 am-6:10 pm

1 stop20h 15m

Seattle/Tacoma Intl

Sun 11/15

7:05 pm-10:30 am

1 stop31h 25m

$793

LisbonSeattle

LIS Lisbon Humberto Delgado - SEA Seattle/Tacoma Intl

LISSEA

Lisbon Humberto Delgado

Thu 11/19

11:35 am-5:10 pm

1 stop37h 35m

Seattle/Tacoma Intl

Thu 12/3

7:05 pm-11:25 pm

1 stop20h 20m

$794

LisbonSeattle

LIS Lisbon Humberto Delgado - SEA Seattle/Tacoma Intl

LISSEA

Lisbon Humberto Delgado

Wed 10/21

5:00 am-4:35 pm

1 stop19h 35m

Seattle/Tacoma Intl

Wed 10/28

11:05 am-3:10 pm

2 stops21h 05m

$888
Quickest round-trip

LisbonSeattle

LIS Lisbon Humberto Delgado - SEA Seattle/Tacoma Intl

LISSEA

Lisbon Humberto Delgado

Fri 3/5

5:00 am-11:35 am

1 stop14h 35m

Seattle/Tacoma Intl

Wed 3/10

7:15 am-11:20 am

2 stops20h 05m

$888

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 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 $897. If you don’t want to visit Seattle in February, then you should wait until October to fly from Lisbon, when ticket prices are also cheap, with an average price of $924.

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 September 2026, prices for Lisbon to Seattle flights are approximately 5% 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

$448

Fastest flight time

14h 35m

Direct flights

None
The best one-way flight to Seattle from Lisbon in the past 72 hours is $448. The best round-trip flight deal from Lisbon to Seattle found on momondo in the last 72 hours is $760.
The fastest flight from Lisbon to Seattle takes 14h 35m
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 35m.

  • 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 $973Free CancellationRating
7.8
8,605 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
Kent
Redmond
Lakewood
Federal Way
Fife
Tukwila
Puyallup
Lynnwood
Cle Elum
Marysville
Lacey
Centralia
Kirkland
Shoreline

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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