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Cheap flights from Lisbon to Seattle from $300

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 4/21. 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
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.
Multiple Airlines Logo
7:00 am - 5:00 pm
LIS
-
SEA
18h 00m
2 stops
Multiple Airlines Logo
2:35 pm - 7:15 pm
SEA
-
LIS
20h 40m
2 stops
$633Multiple Airlines
Thu, Feb 26 - Wed, Mar 4
Multiple Airlines Logo
7:00 am - 5:00 pm
LIS
-
SEA
18h 00m
2 stops
Multiple Airlines Logo
2:35 pm - 8:25 pm
SEA
-
LIS
21h 50m
3 stops
$662Multiple Airlines
Thu, Feb 26 - Wed, Mar 4
Multiple Airlines Logo
6:15 am - 6:00 pm
LIS
-
SEA
18h 45m
2 stops
Multiple Airlines Logo
3:35 pm - 10:50 pm
SEA
-
LIS
24h 15m
2 stops
$731Multiple Airlines
Wed, Mar 11 - Mon, Mar 16
Multiple Airlines Logo
9:00 pm - 6:00 pm
LIS
-
SEA
28h 00m
3 stops
Multiple Airlines Logo
3:35 pm - 10:50 pm
SEA
-
LIS
24h 15m
2 stops
$787Multiple Airlines
Wed, Mar 11 - Mon, Mar 16
Multiple Airlines Logo
7:00 am - 5:00 pm
LIS
-
SEA
18h 00m
2 stops
Multiple Airlines Logo
3:35 pm - 10:45 pm
SEA
-
LIS
24h 10m
2 stops
$797Multiple Airlines
Thu, Feb 26 - Wed, Mar 11
Multiple Airlines Logo
8:40 am - 9:15 am
LIS
-
SEA
32h 35m
3 stops
Multiple Airlines Logo
2:35 pm - 8:05 pm
SEA
-
LIS
21h 30m
3 stops
$807Multiple Airlines
Thu, Feb 26 - Wed, Mar 4
Multiple Airlines Logo
8:40 am - 7:18 pm
LIS
-
SEA
42h 38m
2 stops
Multiple Airlines Logo
3:35 pm - 8:20 pm
SEA
-
LIS
21h 45m
1 stop
$834Multiple Airlines
Thu, Feb 26 - Wed, Mar 11
WestJet Logo
6:10 am - 9:40 am
LIS
-
SEA
35h 30m
2 stops
WestJet Logo
7:35 pm - 10:35 pm
SEA
-
LIS
19h 00m
2 stops
$844WestJet
Sat, May 2 - Thu, May 28
WestJet Logo
6:10 am - 9:40 am
LIS
-
SEA
35h 30m
2 stops
WestJet Logo
7:35 pm - 10:35 pm
SEA
-
LIS
19h 00m
3 stops
$858WestJet
Sat, May 2 - Thu, May 28
Multiple Airlines Logo
7:00 am - 5:00 pm
LIS
-
SEA
18h 00m
2 stops
Multiple Airlines Logo
2:35 pm - 8:20 pm
SEA
-
LIS
21h 45m
1 stop
$861Multiple Airlines
Thu, Feb 26 - Wed, Mar 4

Delta flights from Lisbon to Seattle

Our best Delta deals on Lisbon to Seattle flight tickets
Delta
Feb 26
LIS5:00 amLisbon Humberto Delgado
14h 40m
1 stop
SEA11:40 amSeattle/Tacoma Intl
Mar 11
SEA3:10 pmSeattle/Tacoma Intl
19h 20m
1 stop
LIS5:30 pmLisbon Humberto Delgado
$873
Delta
Feb 26
LIS5:00 amLisbon Humberto Delgado
14h 40m
1 stop
SEA11:40 amSeattle/Tacoma Intl
Mar 11
SEA7:15 amSeattle/Tacoma Intl
20h 20m
2 stops
LIS10:35 amLisbon Humberto Delgado
$881
Delta
Feb 27
LIS5:00 amLisbon Humberto Delgado
20h 00m
2 stops
SEA5:00 pmSeattle/Tacoma Intl
Mar 15
SEA7:20 amSeattle/Tacoma Intl
17h 40m
1 stop
LIS8:00 amLisbon Humberto Delgado
$883

KLM flights from Lisbon to Seattle

Our best KLM deals on Lisbon to Seattle flight tickets
KLM
Mar 2
LIS3:30 pmLisbon Humberto Delgado
28h 05m
1 stop
SEA11:35 amSeattle/Tacoma Intl
Mar 14
SEA4:05 pmSeattle/Tacoma Intl
19h 35m
1 stop
LIS6:40 pmLisbon Humberto Delgado
$893
KLM
Mar 12
LIS10:00 amLisbon Humberto Delgado
16h 46m
1 stop
SEA7:46 pmSeattle/Tacoma Intl
Mar 21
SEA10:58 pmSeattle/Tacoma Intl
26h 57m
1 stop
LIS8:55 amLisbon Humberto Delgado
$898

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 February 12, 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

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Thu 2/26

7:00 am-5:00 pm

2 stops18h 00m

Seattle/Tacoma Intl

Wed 3/4

2:35 pm-7:15 pm

2 stops20h 40m

$633

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Thu 2/26

7:00 am-5:00 pm

2 stops18h 00m

Seattle/Tacoma Intl

Wed 3/4

2:35 pm-8:25 pm

3 stops21h 50m

$662

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Wed 3/11

6:15 am-6:00 pm

2 stops18h 45m

Seattle/Tacoma Intl

Mon 3/16

3:35 pm-10:50 pm

2 stops24h 15m

$731

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Wed 3/11

9:00 pm-6:00 pm

3 stops28h 00m

Seattle/Tacoma Intl

Mon 3/16

3:35 pm-10:50 pm

2 stops24h 15m

$787

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Thu 2/26

7:00 am-5:00 pm

2 stops18h 00m

Seattle/Tacoma Intl

Wed 3/11

3:35 pm-10:45 pm

2 stops24h 10m

$797

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Thu 2/26

8:40 am-9:15 am

3 stops32h 35m

Seattle/Tacoma Intl

Wed 3/4

2:35 pm-8:05 pm

3 stops21h 30m

$807

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Thu 2/26

8:40 am-7:18 pm

2 stops42h 38m

Seattle/Tacoma Intl

Wed 3/11

3:35 pm-8:20 pm

1 stop21h 45m

$834

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Sat 5/2

6:10 am-9:40 am

2 stops35h 30m

Seattle/Tacoma Intl

Thu 5/28

7:35 pm-10:35 pm

2 stops19h 00m

$844

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Sat 5/2

6:10 am-9:40 am

2 stops35h 30m

Seattle/Tacoma Intl

Thu 5/28

7:35 pm-10:35 pm

3 stops19h 00m

$858

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Thu 2/26

7:00 am-5:00 pm

2 stops18h 00m

Seattle/Tacoma Intl

Wed 3/4

2:35 pm-8:20 pm

1 stop21h 45m

$861

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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, April 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 $807. If you don’t want to visit Seattle in April, then you should wait until May to fly from Lisbon, when ticket prices are also cheap, with an average price of $821.

How have Lisbon to Seattle flight prices changed over time?

As of February 2026, prices for Lisbon to Seattle flights are approximately 32% 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

14h 35m

Direct flights

None
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

  • 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
British AirwaysPriceFrom $720Free CancellationRating
6.7
7,737 reviews
Search British Airways flights
United AirlinesPriceFrom $738Free CancellationRating
7.4
9,283 reviews
Search United Airlines flights
Air FrancePriceFrom $762Free CancellationRating
7.4
1,532 reviews
Search Air France flights
DeltaPriceFrom $775Free CancellationRating
7.9
8,189 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
Marysville
Redmond
Puyallup
Cle Elum
Lakewood
Tukwila
Federal Way
Kirkland
Westport
Centralia
Fife
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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