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Cheap flights from Lisbon to Seattle from $415

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 6/17. 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
$722Aer Lingus
Fri, May 1 - Sat, May 16
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
$723Aer Lingus
Fri, May 1 - Sat, May 16
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
$724Aer Lingus
Fri, May 1 - Sat, May 16
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
$761Aer Lingus
Fri, May 15 - Sat, May 30
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
$770Aer Lingus
Fri, May 8 - Sat, May 23
Multiple Airlines Logo
10:00 pm - 9:40 am
LIS
-
SEA
43h 40m
3 stops
Multiple Airlines Logo
3:40 pm - 10:50 pm
SEA
-
LIS
23h 10m
3 stops
$841Multiple Airlines
Fri, May 15 - Sat, May 30
Multiple Airlines Logo
10:00 pm - 9:40 am
LIS
-
SEA
43h 40m
3 stops
Multiple Airlines Logo
3:40 pm - 10:05 pm
SEA
-
LIS
22h 25m
2 stops
$843Multiple Airlines
Fri, May 15 - Sat, May 30
Multiple Airlines Logo
6:10 am - 8:40 pm
LIS
-
SEA
22h 30m
2 stops
Multiple Airlines Logo
3:40 pm - 10:40 pm
SEA
-
LIS
23h 00m
2 stops
$884Multiple Airlines
Wed, Apr 22 - Sat, Apr 25
Scandinavian Airlines Logo
9:15 pm - 1:45 pm
LIS
-
SEA
24h 30m
1 stop
Scandinavian Airlines Logo
3:55 pm - 9:00 am
SEA
-
LIS
33h 05m
1 stop
$888Scandinavian Airlines
Fri, May 22 - Fri, Jun 5
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
$890Aer Lingus
Fri, May 1 - Sat, May 16

Aer Lingus flights from Lisbon to Seattle

Our best Aer Lingus deals on Lisbon to Seattle flight tickets
Aer Lingus
May 1
LIS10:15 pmLisbon Humberto Delgado
26h 55m
1 stop
SEA5:10 pmSeattle/Tacoma Intl
May 16
SEA7:10 pmSeattle/Tacoma Intl
18h 25m
1 stop
LIS9:35 pmLisbon Humberto Delgado
$722
Aer Lingus
May 1
LIS10:15 pmLisbon Humberto Delgado
26h 55m
1 stop
SEA5:10 pmSeattle/Tacoma Intl
May 16
SEA7:10 pmSeattle/Tacoma Intl
18h 25m
1 stop
LIS9:35 pmLisbon Humberto Delgado
$723
Aer Lingus
May 1
LIS10:15 pmLisbon Humberto Delgado
26h 55m
1 stop
SEA5:10 pmSeattle/Tacoma Intl
May 16
SEA7:10 pmSeattle/Tacoma Intl
18h 25m
1 stop
LIS9:35 pmLisbon Humberto Delgado
$724

Delta flights from Lisbon to Seattle

Our best Delta deals on Lisbon to Seattle flight tickets
Delta
May 1
LIS5:00 amLisbon Humberto Delgado
14h 40m
1 stop
SEA11:40 amSeattle/Tacoma Intl
May 16
SEA6:40 pmSeattle/Tacoma Intl
15h 10m
1 stop
LIS5:50 pmLisbon Humberto Delgado
$988
Delta
Aug 26
LIS5:00 amLisbon Humberto Delgado
19h 27m
1 stop
SEA4:27 pmSeattle/Tacoma Intl
Nov 25
SEA11:25 amSeattle/Tacoma Intl
19h 45m
2 stops
LIS3:10 pmLisbon Humberto Delgado
$989
Delta
May 1
LIS5:00 amLisbon Humberto Delgado
21h 28m
2 stops
SEA6:28 pmSeattle/Tacoma Intl
May 16
SEA6:40 pmSeattle/Tacoma Intl
15h 10m
1 stop
LIS5:50 pmLisbon Humberto Delgado
$993

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 April 10, 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
Quickest 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

$722

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

$723

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

$724

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Fri 5/15

10:15 pm-5:10 pm

1 stop26h 55m

Seattle/Tacoma Intl

Sat 5/30

7:10 pm-9:35 pm

1 stop18h 25m

$761

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Fri 5/8

10:15 pm-5:10 pm

1 stop26h 55m

Seattle/Tacoma Intl

Sat 5/23

7:10 pm-9:35 pm

1 stop18h 25m

$770

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Fri 5/15

10:00 pm-9:40 am

3 stops43h 40m

Seattle/Tacoma Intl

Sat 5/30

3:40 pm-10:50 pm

3 stops23h 10m

$841

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Fri 5/15

10:00 pm-9:40 am

3 stops43h 40m

Seattle/Tacoma Intl

Sat 5/30

3:40 pm-10:05 pm

2 stops22h 25m

$843

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Wed 4/22

6:10 am-8:40 pm

2 stops22h 30m

Seattle/Tacoma Intl

Sat 4/25

3:40 pm-10:40 pm

2 stops23h 00m

$884

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Fri 5/22

9:15 pm-1:45 pm

1 stop24h 30m

Seattle/Tacoma Intl

Fri 6/5

3:55 pm-9:00 am

1 stop33h 05m

$888

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

$890

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 October to fly from Lisbon, when ticket prices are also cheap, with an average price of $871.

How have Lisbon to Seattle flight prices changed over time?

As of April 2026, prices for Lisbon to Seattle flights are approximately 5% 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

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 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
1,564 reviews
Search Air France flights
DeltaPriceFrom $775Free CancellationRating
7.9
8,394 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
Marysville
Puyallup
Lakewood
Cle Elum
Tukwila
Federal Way
Centralia
Fife
Westport
Tumwater
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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