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Cheap flights from Seattle to Lisbon from $220

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Lisbon departing on 11/3. 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

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Seattle to Lisbon

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
10:10 am - 6:55 amSEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
36h 45m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
5:00 am - 2:37 pmLIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
17h 37m2 stops Frankfurt am Main Vancouver Intl
$743Air Canada
Tue, Nov 17 - Fri, Nov 27
Air Canada Logo
7:05 pm - 10:40 amSEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
31h 35m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
5:00 am - 9:27 amLIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
36h 27m2 stops Frankfurt am Main Vancouver Intl
$743Air Canada
Sun, Nov 1 - Wed, Nov 18
Multiple Airlines Logo
3:15 pm - 6:55 amSEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
31h 40m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl
Multiple Airlines Logo
5:00 am - 12:00 pmLIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
15h 00m1 stop Frankfurt am Main
$743Multiple Airlines
Tue, Nov 3 - Thu, Nov 19
Multiple Airlines Logo
3:15 pm - 6:55 amSEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
31h 40m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl
Multiple Airlines Logo
5:00 am - 12:00 pmLIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
15h 00m1 stop Frankfurt am Main
$743Multiple Airlines
Tue, Nov 3 - Wed, Nov 18
United Airlines Logo
6:45 am - 8:10 amSEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
17h 25m1 stop Newark
United Airlines Logo
5:00 am - 12:00 pmLIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
15h 00m1 stop Frankfurt am Main
$744United Airlines
Mon, Nov 2 - Thu, Nov 19
United Airlines Logo
8:09 am - 10:05 amSEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
18h 56m1 stop Washington, D.C. Dulles Intl
United Airlines Logo
5:00 am - 12:00 pmLIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
15h 00m1 stop Frankfurt am Main
$744United Airlines
Tue, Oct 27 - Thu, Nov 19
Lufthansa Logo
8:09 am - 10:20 amSEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
18h 11m1 stop Washington, D.C. Dulles Intl
Lufthansa Logo
5:00 am - 12:00 pmLIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
15h 00m1 stop Frankfurt am Main
$744Lufthansa
Wed, Nov 4 - Thu, Nov 19
Lufthansa Logo
8:09 am - 10:05 amSEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
17h 56m1 stop Washington, D.C. Dulles Intl
Lufthansa Logo
5:00 am - 12:00 pmLIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
15h 00m1 stop Frankfurt am Main
$744Lufthansa
Tue, Nov 3 - Thu, Nov 19
Delta Logo
3:25 pm - 3:10 pmSEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
15h 45m1 stop Paris Charles de Gaulle
Delta Logo
11:30 am - 11:50 amLIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
32h 20m1 stop Amsterdam Schiphol
$745Delta
Mon, Nov 23 - Wed, Dec 2
Delta Logo
4:05 pm - 3:10 pmSEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
15h 05m1 stop Paris Charles de Gaulle
Delta Logo
11:30 am - 11:50 amLIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
32h 20m1 stop Amsterdam Schiphol
$745Delta
Tue, Nov 17 - Wed, Dec 2

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Icelandair flights from Seattle to Lisbon

Our best Icelandair deals on Seattle to Lisbon flight tickets
Icelandair
Oct 4
SEA7:00 pmSeattle/Tacoma Intl
34h 50m
1 stop
LIS1:50 pmLisbon Humberto Delgado
Oct 20
LIS3:00 pmLisbon Humberto Delgado
13h 40m
1 stop
SEA8:40 pmSeattle/Tacoma Intl
$752
Icelandair
Oct 4
SEA7:00 pmSeattle/Tacoma Intl
34h 50m
1 stop
LIS1:50 pmLisbon Humberto Delgado
Oct 18
LIS3:00 pmLisbon Humberto Delgado
13h 40m
1 stop
SEA8:40 pmSeattle/Tacoma Intl
$753
Icelandair
Oct 4
SEA7:00 pmSeattle/Tacoma Intl
34h 50m
1 stop
LIS1:50 pmLisbon Humberto Delgado
Oct 18
LIS3:00 pmLisbon Humberto Delgado
13h 40m
1 stop
SEA8:40 pmSeattle/Tacoma Intl
$754

Air Canada flights from Seattle to Lisbon

Our best Air Canada deals on Seattle to Lisbon flight tickets
Air Canada
Oct 27
SEA10:10 amSeattle/Tacoma Intl
37h 45m
2 stops
LIS6:55 amLisbon Humberto Delgado
Nov 19
LIS5:00 amLisbon Humberto Delgado
17h 37m
2 stops
SEA2:37 pmSeattle/Tacoma Intl
$743
Air Canada
Jan 5
SEA7:05 pmSeattle/Tacoma Intl
27h 50m
2 stops
LIS6:55 amLisbon Humberto Delgado
Jan 13
LIS5:00 amLisbon Humberto Delgado
23h 59m
2 stops
SEA8:59 pmSeattle/Tacoma Intl
$751
Air Canada
Nov 3
SEA7:05 pmSeattle/Tacoma Intl
27h 50m
2 stops
LIS6:55 amLisbon Humberto Delgado
Nov 19
LIS8:55 amLisbon Humberto Delgado
21h 02m
2 stops
SEA9:57 pmSeattle/Tacoma Intl
$759

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Lisbon 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 August 15, 2026.
Use the filters below to find and compare flights from Seattle to Lisbon that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Tue 11/17

10:10 am-6:55 am

2 stops36h 45m

Lisbon Humberto Delgado

Fri 11/27

5:00 am-2:37 pm

2 stops17h 37m

$743

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Sun 11/1

7:05 pm-10:40 am

2 stops31h 35m

Lisbon Humberto Delgado

Wed 11/18

5:00 am-9:27 am

2 stops36h 27m

$743

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Tue 11/3

3:15 pm-6:55 am

2 stops31h 40m

Lisbon Humberto Delgado

Thu 11/19

5:00 am-12:00 pm

1 stop15h 00m

$743

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Tue 11/3

3:15 pm-6:55 am

2 stops31h 40m

Lisbon Humberto Delgado

Wed 11/18

5:00 am-12:00 pm

1 stop15h 00m

$743
Quickest round-trip

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Mon 11/2

6:45 am-8:10 am

1 stop17h 25m

Lisbon Humberto Delgado

Thu 11/19

5:00 am-12:00 pm

1 stop15h 00m

$744

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Tue 10/27

8:09 am-10:05 am

1 stop18h 56m

Lisbon Humberto Delgado

Thu 11/19

5:00 am-12:00 pm

1 stop15h 00m

$744

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Wed 11/4

8:09 am-10:20 am

1 stop18h 11m

Lisbon Humberto Delgado

Thu 11/19

5:00 am-12:00 pm

1 stop15h 00m

$744

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Tue 11/3

8:09 am-10:05 am

1 stop17h 56m

Lisbon Humberto Delgado

Thu 11/19

5:00 am-12:00 pm

1 stop15h 00m

$744

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Mon 11/23

3:25 pm-3:10 pm

1 stop15h 45m

Lisbon Humberto Delgado

Wed 12/2

11:30 am-11:50 am

1 stop32h 20m

$745

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Tue 11/17

4:05 pm-3:10 pm

1 stop15h 05m

Lisbon Humberto Delgado

Wed 12/2

11:30 am-11:50 am

1 stop32h 20m

$745

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 Lisbon from

How to get the cheapest flight ticket from Seattle to Lisbon

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 Seattle and Lisbon?

Prices are currently low for flights on this route.

Typical prices usually range from $776 to $1,174.
The lowest price recently found on this route was $743.

What is the cheapest month to fly to Lisbon?

In general, January is the cheapest month to fly from Seattle to Lisbon. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $481. If you are unable to visit Lisbon during the month of January, then departing from Seattle during the month February is also very affordable. Most momondo users find prices during this month for around $553.

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

You are more likely to see cheaper flights to Lisbon from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Lisbon for around $848 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Lisbon from Seattle for as low as $713 on momondo.

Can stopping save me money on Seattle to Lisbon flights?

You could potentially save up to 32% on your flight if you consider stops on a Seattle to Lisbon flight.

How have Seattle to Lisbon flight prices changed over time?

As of August 2026, prices for Seattle to Lisbon flights are approximately 12% cheaper when compared to flights at the same time last year.

When to book flights from Seattle to Lisbon

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Lisbon according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Lisbon (SEA to LIS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Lisbon

Fastest flight time

14h 15m

Direct flights

None
The fastest flight from Seattle to Lisbon takes 14h 15m
There are no direct flights from Seattle to Lisbon. There are no popular flight routes from Seattle to Lisbon.
Search flight deals

Frequently asked questions about flying from Seattle to Lisbon

  • How far is Seattle/Tacoma Intl to Lisbon Humberto Delgado by plane?

    The straight-line distance from Seattle/Tacoma Intl to Lisbon Humberto Delgado is 5195.1 mi. 14h 15m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Lisbon Humberto Delgado Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Lisbon Humberto Delgado Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Lisbon Humberto Delgado Airport?

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Lisbon Humberto Delgado Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Lisbon Humberto Delgado Airport.

  • What documentation or ID do you need to fly to Lisbon Humberto Delgado Airport?

    The travel and health documents you'll need for your trip to Lisbon Humberto Delgado Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Lisbon Humberto Delgado Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Seattle to Lisbon?

Best airlines flying from Seattle to Lisbon

Compare and see reviews for airlines that fly from Seattle to Lisbon with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom $348Free CancellationRating
6.9
731 reviews
Search Icelandair flights
LufthansaPriceFrom $475Free CancellationRating
6.8
8,195 reviews
Search Lufthansa flights
British AirwaysPriceFrom $482Free CancellationRating
6.7
8,168 reviews
Search British Airways flights
United AirlinesPriceFrom $486Free CancellationRating
7.4
10,110 reviews
Search United Airlines flights
American AirlinesPriceFrom $497Free CancellationRating
7.1
11,941 reviews
Search American Airlines flights
KLMPriceFrom $503Free CancellationRating
7.8
1,559 reviews
Search KLM flights
Air FrancePriceFrom $504Free CancellationRating
7.5
1,643 reviews
Search Air France flights
Aer LingusPriceFrom $523Free CancellationRating
7.3
1,706 reviews
Search Aer Lingus flights
Air CanadaPriceFrom $543Free CancellationRating
7.1
11,479 reviews
Search Air Canada flights
DeltaPriceFrom $550Free CancellationRating
7.8
8,508 reviews
Search Delta flights

Traveling to a place near Lisbon?

Book flights to Lisbon if you plan to visit one of these locations
Sintra
Fátima
Figueira da Foz
Setúbal
Nazaré
Estoril
Evora
Ericeira
Peniche
Óbidos
Tomar
Batalha
Leiria
Oeiras
Sesimbra
Zambujeira do Mar
Torres Vedras
Comporta
Sines
Caldas da Rainha

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Lisbon?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Lisbon from Seattle.

Can I find flights from Seattle to Lisbon with flexible booking policies on momondo?

Yes. All flights to Lisbon from Seattle on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Seattle to Lisbon?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Lisbon from Seattle.

I’m not ready to book a flight from Seattle to Lisbon right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Seattle to Lisbon flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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