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Cheap flights from Lisbon to Seattle from $348

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 6/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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
$746Aer Lingus
Sat, Jun 6 - Mon, Jun 22
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
$754Aer Lingus
Sat, Jun 6 - Mon, Jun 22
Multiple Airlines Logo
6:10 am - 9:40 am
LIS
-
SEA
35h 30m
2 stops
Multiple Airlines Logo
7:00 pm - 8:30 am
SEA
-
LIS
29h 30m
3 stops
$755Multiple Airlines
Thu, Aug 20 - Thu, Sep 3
Multiple Airlines Logo
6:10 am - 9:40 am
LIS
-
SEA
35h 30m
2 stops
Multiple Airlines Logo
7:10 pm - 6:55 pm
SEA
-
LIS
15h 45m
1 stop
$772Multiple Airlines
Thu, Jul 9 - Mon, Aug 24
WestJet Logo
6:15 am - 9:40 am
LIS
-
SEA
35h 25m
2 stops
WestJet Logo
7:00 am - 9:45 pm
SEA
-
LIS
30h 45m
3 stops
$777WestJet
Tue, Jul 7 - Tue, Jul 14
WestJet Logo
6:15 am - 9:40 am
LIS
-
SEA
35h 25m
3 stops
WestJet Logo
7:00 am - 9:45 pm
SEA
-
LIS
30h 45m
3 stops
$778WestJet
Tue, Jul 7 - Tue, Jul 14
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
$783Aer Lingus
Sat, Jun 6 - Mon, Jun 22
Multiple Airlines Logo
6:10 am - 9:40 am
LIS
-
SEA
35h 30m
2 stops
Multiple Airlines Logo
3:40 pm - 8:30 am
SEA
-
LIS
32h 50m
3 stops
$786Multiple Airlines
Sat, Sep 12 - Sun, Sep 13
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
$796Aer Lingus
Sun, Jun 7 - Tue, Jun 23
Multiple Airlines Logo
6:10 am - 9:40 am
LIS
-
SEA
35h 30m
2 stops
Multiple Airlines Logo
3:40 pm - 5:50 pm
SEA
-
LIS
18h 10m
2 stops
$811Multiple Airlines
Thu, Aug 20 - Thu, Sep 3

Aer Lingus flights from Lisbon to Seattle

Our best Aer Lingus deals on Lisbon to Seattle flight tickets
Aer Lingus
Jun 6
LIS10:15 pmLisbon Humberto Delgado
26h 55m
1 stop
SEA5:10 pmSeattle/Tacoma Intl
Jun 22
SEA7:10 pmSeattle/Tacoma Intl
18h 25m
1 stop
LIS9:35 pmLisbon Humberto Delgado
$746
Aer Lingus
Jun 6
LIS10:15 pmLisbon Humberto Delgado
26h 55m
1 stop
SEA5:10 pmSeattle/Tacoma Intl
Jun 22
SEA7:10 pmSeattle/Tacoma Intl
18h 25m
1 stop
LIS9:35 pmLisbon Humberto Delgado
$754
Aer Lingus
Jun 6
LIS10:15 pmLisbon Humberto Delgado
26h 55m
1 stop
SEA5:10 pmSeattle/Tacoma Intl
Jun 22
SEA7:10 pmSeattle/Tacoma Intl
18h 25m
1 stop
LIS9:35 pmLisbon Humberto Delgado
$783

Delta flights from Lisbon to Seattle

Our best Delta deals on Lisbon to Seattle flight tickets
Delta
Jun 1
LIS5:00 amLisbon Humberto Delgado
19h 24m
1 stop
SEA4:24 pmSeattle/Tacoma Intl
Jun 7
SEA7:26 amSeattle/Tacoma Intl
19h 29m
2 stops
LIS10:55 amLisbon Humberto Delgado
$999
Delta
Jun 6
LIS5:00 amLisbon Humberto Delgado
19h 35m
2 stops
SEA4:35 pmSeattle/Tacoma Intl
Jun 15
SEA1:30 pmSeattle/Tacoma Intl
13h 45m
1 stop
LIS11:15 amLisbon Humberto Delgado
$1,000
Delta
Jun 7
LIS5:00 amLisbon Humberto Delgado
19h 24m
1 stop
SEA4:24 pmSeattle/Tacoma Intl
Jun 23
SEA9:30 amSeattle/Tacoma Intl
17h 25m
2 stops
LIS10:55 amLisbon Humberto Delgado
$1,002

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 May 27, 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

Sat 6/6

10:15 pm-5:10 pm

1 stop26h 55m

Seattle/Tacoma Intl

Mon 6/22

7:10 pm-9:35 pm

1 stop18h 25m

$746

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Sat 6/6

10:15 pm-5:10 pm

1 stop26h 55m

Seattle/Tacoma Intl

Mon 6/22

7:10 pm-9:35 pm

1 stop18h 25m

$754

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Thu 8/20

6:10 am-9:40 am

2 stops35h 30m

Seattle/Tacoma Intl

Thu 9/3

7:00 pm-8:30 am

3 stops29h 30m

$755

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Thu 7/9

6:10 am-9:40 am

2 stops35h 30m

Seattle/Tacoma Intl

Mon 8/24

7:10 pm-6:55 pm

1 stop15h 45m

$772

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Tue 7/7

6:15 am-9:40 am

2 stops35h 25m

Seattle/Tacoma Intl

Tue 7/14

7:00 am-9:45 pm

3 stops30h 45m

$777

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Tue 7/7

6:15 am-9:40 am

3 stops35h 25m

Seattle/Tacoma Intl

Tue 7/14

7:00 am-9:45 pm

3 stops30h 45m

$778

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Sat 6/6

10:15 pm-5:10 pm

1 stop26h 55m

Seattle/Tacoma Intl

Mon 6/22

7:10 pm-9:35 pm

1 stop18h 25m

$783

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Sat 9/12

6:10 am-9:40 am

2 stops35h 30m

Seattle/Tacoma Intl

Sun 9/13

3:40 pm-8:30 am

3 stops32h 50m

$786

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Sun 6/7

10:15 pm-5:10 pm

1 stop26h 55m

Seattle/Tacoma Intl

Tue 6/23

7:10 pm-9:35 pm

1 stop18h 25m

$796

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Thu 8/20

6:10 am-9:40 am

2 stops35h 30m

Seattle/Tacoma Intl

Thu 9/3

3:40 pm-5:50 pm

2 stops18h 10m

$811

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.

Can stopping save me money on Lisbon to Seattle flights?

You could potentially save up to 5% 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 May 2026, prices for Lisbon to Seattle flights are approximately 14% 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

14h 42m

Direct flights

None
The fastest flight from Lisbon to Seattle takes 14h 42m
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 42m.

  • 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 $1,019Free CancellationRating
7.9
8,423 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
Marysville
Cle Elum
Federal Way
Fife
Centralia
Shoreline
Westport
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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