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Cheap flights from Lisbon to Seattle from $369

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 1/28. 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.
Multiple Airlines Logo
6:20 am - 5:00 pm
LIS
-
SEA
18h 40m2 stops
Multiple Airlines Logo
2:35 pm - 10:50 pm
SEA
-
LIS
24h 15m2 stops
$631Multiple Airlines
Mon, Feb 2 - Mon, Feb 9
Multiple Airlines Logo
5:40 pm - 5:00 pm
LIS
-
SEA
31h 20m3 stops
Multiple Airlines Logo
2:35 pm - 8:30 am
SEA
-
LIS
33h 55m3 stops
$668Multiple Airlines
Tue, Feb 3 - Tue, Feb 10
Multiple Airlines Logo
5:40 pm - 5:00 pm
LIS
-
SEA
31h 20m3 stops
Multiple Airlines Logo
2:35 pm - 7:25 pm
SEA
-
LIS
20h 50m2 stops
$680Multiple Airlines
Tue, Feb 3 - Tue, Feb 10
Multiple Airlines Logo
6:20 am - 5:00 pm
LIS
-
SEA
18h 40m2 stops
Multiple Airlines Logo
2:35 pm - 10:00 am
SEA
-
LIS
35h 25m3 stops
$692Multiple Airlines
Mon, Feb 2 - Mon, Feb 9
Multiple Airlines Logo
6:15 pm - 5:00 pm
LIS
-
SEA
30h 45m3 stops
Multiple Airlines Logo
2:35 pm - 7:25 pm
SEA
-
LIS
20h 50m2 stops
$697Multiple Airlines
Mon, Jan 12 - Tue, Jan 27
Multiple Airlines Logo
9:25 am - 10:16 pm
LIS
-
SEA
20h 51m2 stops
Multiple Airlines Logo
2:35 pm - 7:40 pm
SEA
-
LIS
21h 05m2 stops
$711Multiple Airlines
Tue, Feb 3 - Tue, Feb 10
British Airways Logo
11:05 am - 10:07 pm
LIS
-
SEA
19h 02m1 stop
British Airways Logo
1:35 pm - 2:50 pm
SEA
-
LIS
17h 15m1 stop
$735British Airways
Sun, Jan 25 - Sat, Feb 7
Multiple Airlines Logo
8:05 pm - 5:00 pm
LIS
-
SEA
28h 55m3 stops
Multiple Airlines Logo
2:35 pm - 10:35 am
SEA
-
LIS
36h 00m3 stops
$740Multiple Airlines
Mon, Jan 12 - Tue, Jan 27
American Airlines Logo
8:20 am - 11:30 am
LIS
-
SEA
35h 10m2 stops
American Airlines Logo
7:50 pm - 2:55 pm
SEA
-
LIS
36h 05m1 stop
$750American Airlines
Thu, Mar 5 - Sun, Mar 8
American Airlines Logo
7:45 am - 10:20 pm
LIS
-
SEA
22h 35m2 stops
American Airlines Logo
8:04 am - 5:55 pm
SEA
-
LIS
25h 51m2 stops
$752American Airlines
Sun, Jan 25 - Sat, Feb 7

British Airways flights from Lisbon to Seattle

Our best British Airways deals on Lisbon to Seattle flight tickets
British Airways
Jan 25
LIS11:05 amLisbon Humberto Delgado
19h 02m
1 stop
SEA10:07 pmSeattle/Tacoma Intl
Feb 7
SEA1:35 pmSeattle/Tacoma Intl
17h 15m
1 stop
LIS2:50 pmLisbon Humberto Delgado
$735
Find similar
British Airways
Jan 12
LIS11:05 amLisbon Humberto Delgado
19h 02m
1 stop
SEA10:07 pmSeattle/Tacoma Intl
Jan 27
SEA8:04 amSeattle/Tacoma Intl
29h 41m
2 stops
LIS9:45 pmLisbon Humberto Delgado
$754
Find similar
British Airways
Apr 8
LIS11:05 amLisbon Humberto Delgado
18h 41m
1 stop
SEA9:46 pmSeattle/Tacoma Intl
Apr 22
SEA1:33 pmSeattle/Tacoma Intl
18h 07m
2 stops
LIS3:40 pmLisbon Humberto Delgado
$755
Find similar

American Airlines flights from Lisbon to Seattle

Our best American Airlines deals on Lisbon to Seattle flight tickets
American Airlines
Mar 5
LIS8:20 amLisbon Humberto Delgado
35h 10m
2 stops
SEA11:30 amSeattle/Tacoma Intl
Mar 8
SEA1:37 pmSeattle/Tacoma Intl
25h 08m
2 stops
LIS9:45 pmLisbon Humberto Delgado
$750
Find similar
American Airlines
Mar 5
LIS6:30 amLisbon Humberto Delgado
24h 59m
2 stops
SEA11:29 pmSeattle/Tacoma Intl
Mar 8
SEA1:37 pmSeattle/Tacoma Intl
21h 08m
2 stops
LIS5:45 pmLisbon Humberto Delgado
$752
Find similar
American Airlines
Jan 12
LIS11:05 amLisbon Humberto Delgado
19h 02m
1 stop
SEA10:07 pmSeattle/Tacoma Intl
Jan 27
SEA10:50 amSeattle/Tacoma Intl
19h 55m
2 stops
LIS2:45 pmLisbon Humberto Delgado
$759
Find similar

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 December 21, 2025.
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

Mon 2/2

6:20 am-5:00 pm

2 stops18h 40m

Seattle/Tacoma Intl

Mon 2/9

2:35 pm-10:50 pm

2 stops24h 15m

$631

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Tue 2/3

5:40 pm-5:00 pm

3 stops31h 20m

Seattle/Tacoma Intl

Tue 2/10

2:35 pm-8:30 am

3 stops33h 55m

$668

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Tue 2/3

5:40 pm-5:00 pm

3 stops31h 20m

Seattle/Tacoma Intl

Tue 2/10

2:35 pm-7:25 pm

2 stops20h 50m

$680

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Mon 2/2

6:20 am-5:00 pm

2 stops18h 40m

Seattle/Tacoma Intl

Mon 2/9

2:35 pm-10:00 am

3 stops35h 25m

$692

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Mon 1/12

6:15 pm-5:00 pm

3 stops30h 45m

Seattle/Tacoma Intl

Tue 1/27

2:35 pm-7:25 pm

2 stops20h 50m

$697

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Tue 2/3

9:25 am-10:16 pm

2 stops20h 51m

Seattle/Tacoma Intl

Tue 2/10

2:35 pm-7:40 pm

2 stops21h 05m

$711

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Sun 1/25

11:05 am-10:07 pm

1 stop19h 02m

Seattle/Tacoma Intl

Sat 2/7

1:35 pm-2:50 pm

1 stop17h 15m

$735

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Mon 1/12

8:05 pm-5:00 pm

3 stops28h 55m

Seattle/Tacoma Intl

Tue 1/27

2:35 pm-10:35 am

3 stops36h 00m

$740

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Thu 3/5

8:20 am-11:30 am

2 stops35h 10m

Seattle/Tacoma Intl

Sun 3/8

7:50 pm-2:55 pm

1 stop36h 05m

$750

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Sun 1/25

7:45 am-10:20 pm

2 stops22h 35m

Seattle/Tacoma Intl

Sat 2/7

8:04 am-5:55 pm

2 stops25h 51m

$752

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, 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 $800. 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 $801.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Lisbon is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $800. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Saturday is the most expensive day to depart from Lisbon because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,074.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Lisbon in the evening is the least expensive time of day to depart. momondo users have found prices as low as $718 when looking at flights departing in the evening. Flights to Seattle are more costly in the morning, with an average ticket price of $873. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

How far in advance should I book a flight to Seattle?

You are more likely to see cheaper flights to Seattle from Lisbon when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $944 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Lisbon for as low as $825 on momondo.

How have Lisbon to Seattle flight prices changed over time?

As of December 2025, prices for Lisbon to Seattle flights are approximately 7% 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

18h 40m

Direct flights

None
The fastest flight from Lisbon to Seattle takes 18h 40m
There are no direct flights from Lisbon to Seattle. There are no popular flight routes from Lisbon to Seattle.
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  • 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 18h 40m.

  • 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
7,600 reviews
Search British Airways flights
United AirlinesPriceFrom $738Free CancellationRating
7.4
9,099 reviews
Search United Airlines flights
Air FrancePriceFrom $762Free CancellationRating
7.4
1,509 reviews
Search Air France flights
DeltaPriceFrom $775Free CancellationRating
7.9
8,021 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
Puyallup
Redmond
Tukwila
Cle Elum
Federal Way
Lakewood
Fife
Centralia
Westport
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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