Which layover airport has the shortest connection time from Seattle to Lisbon?

Munich (MUC) has the shortest average layover time for this route: 1h 39m.

What airlines fly to Lisbon?

Delta, British Airways and United Airlines are the top three most popular airlines that fly to Lisbon from Seattle according to our data. Delta is the first choice among our users, with 37% of people opting to fly with this airline when traveling to Lisbon. Keep in mind that there are 12 different airlines that fly to Lisbon on a routine basis, so you have a few additional options to choose from.

Which airport is the most popular layover for flights between Seattle and Lisbon?

London (LHR) was the most common stop: 52% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from Seattle to Lisbon?

Flights via Washington, D.C. (IAD) offer the lowest average round-trip price of $511.

Which layover airport has the shortest travel time from Seattle to Lisbon?

Flights connecting via Paris (CDG) have the shortest average one-way travel time: 14h 26m.

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?

The number of operators available for flights from Seattle/Tacoma Intl Airport to Lisbon Humberto Delgado Airport is 12 as of November 2026.

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.

$306 Cheap Flights from Seattle to Lisbon in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Seattle to Lisbon

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:35 pm - 12:45 pmSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

14h 10m1 stop Reykjavik Keflavik Intl

1:55 pm - 5:00 pmLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

35h 05m1 stop Reykjavik Keflavik Intl

$633Icelandair

Mon, Nov 23 - Tue, Dec 8

2:35 pm - 12:45 pmSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

14h 10m1 stop Reykjavik Keflavik Intl

1:55 pm - 5:00 pmLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

35h 05m1 stop Reykjavik Keflavik Intl

$634Icelandair

Mon, Nov 23 - Tue, Dec 8

7:45 am - 3:45 pmSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

24h 00m2 stops Toronto Pearson Intl Kastrup Copenhagen

6:45 pm - 6:22 pmLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

31h 37m3 stops Kastrup Copenhagen Munich Franz Josef Strauss Vancouver Intl

$728Multiple Airlines

Tue, Dec 1 - Mon, Dec 7

2:35 pm - 9:50 pmSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

23h 15m2 stops Reykjavik Keflavik Intl Stockholm Arlanda

4:55 pm - 5:00 pmLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

32h 05m3 stops Kastrup Copenhagen Stockholm Arlanda Reykjavik Keflavik Intl

$741Multiple Airlines

Thu, Dec 3 - Wed, Dec 9

2:50 pm - 11:30 pmSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

24h 40m1 stop Munich Franz Josef Strauss

6:00 am - 1:00 pmLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

15h 00m1 stop Munich Franz Josef Strauss

$772Lufthansa

Wed, Jan 20 - Wed, Feb 3

2:50 pm - 11:30 pmSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

24h 40m1 stop Munich Franz Josef Strauss

6:00 am - 1:00 pmLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

15h 00m1 stop Munich Franz Josef Strauss

$772Lufthansa

Wed, Jan 13 - Wed, Jan 20

8:40 am - 10:40 amSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

18h 00m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

5:00 am - 2:37 pmLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

17h 37m2 stops Frankfurt am Main Vancouver Intl

$785Air Canada

Mon, Nov 30 - Wed, Dec 9

7:05 pm - 6:55 amSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

27h 50m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

5:00 am - 2:37 pmLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

17h 37m2 stops Frankfurt am Main Vancouver Intl

$785Air Canada

Tue, Dec 1 - Wed, Dec 9

7:00 am - 8:10 amSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

17h 10m1 stop Newark

5:00 am - 12:00 pmLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

15h 00m1 stop Frankfurt am Main

$786United Airlines

Wed, Dec 2 - Wed, Dec 9

8:09 am - 10:05 amSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

17h 56m1 stop Washington, D.C. Dulles Intl

5:00 am - 12:00 pmLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

15h 00m1 stop Frankfurt am Main

$786United Airlines

Tue, Dec 1 - Wed, Dec 9

Cheap last minute flights

Enter your travel dates to find the best prices.

6:15 am - 8:10 amSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

17h 55m1 stop Newark

5:00 am - 12:00 pmLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

15h 00m1 stop Frankfurt am Main

$836United Airlines

Sun, Nov 8 - Wed, Nov 18

3:25 pm - 5:30 pmSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

18h 05m1 stop Paris Charles de Gaulle

5:00 am - 11:47 amLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

14h 47m1 stop Amsterdam Schiphol

$837Delta

Sun, Nov 8 - Wed, Nov 18

3:25 pm - 3:10 pmSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

15h 45m1 stop Paris Charles de Gaulle

5:00 am - 11:47 amLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

14h 47m1 stop Amsterdam Schiphol

$837Multiple Airlines

Sun, Nov 8 - Wed, Nov 18

11:05 am - 3:10 pmSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

20h 05m2 stops Salt Lake City Paris Charles de Gaulle

5:00 am - 11:47 amLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

14h 47m1 stop Amsterdam Schiphol

$841Delta

Sun, Nov 8 - Wed, Nov 18

11:25 am - 3:10 pmSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

19h 45m2 stops Detroit Metropolitan Wayne County Paris Charles de Gaulle

5:00 am - 11:47 amLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

14h 47m1 stop Amsterdam Schiphol

$841Delta

Sun, Nov 8 - Wed, Nov 18

10:56 pm - 10:20 amSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

27h 24m2 stops Chicago O'Hare Intl Washington, D.C. Dulles Intl

11:20 am - 12:19 pmLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

32h 59m2 stops Toronto Pearson Intl Chicago O'Hare Intl

$848United Airlines

Sun, Nov 8 - Wed, Nov 18

1:50 pm - 10:50 pmSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

25h 00m1 stop Frankfurt am Main

2:20 pm - 1:00 pmLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

30h 40m1 stop Munich Franz Josef Strauss

$886Lufthansa

Sun, Nov 8 - Sat, Nov 14

1:50 pm - 10:50 pmSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

25h 00m1 stop Frankfurt am Main

6:00 am - 12:00 pmLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

38h 00m2 stops Munich Franz Josef Strauss Frankfurt am Main

$979Lufthansa

Sun, Nov 8 - Sat, Nov 14

2:50 pm - 8:25 pmSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

21h 35m2 stops Munich Franz Josef Strauss Madrid Barajas

9:00 pm - 1:00 pmLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

24h 00m2 stops Madrid Barajas Munich Franz Josef Strauss

$1,035Multiple Airlines

Sun, Nov 8 - Sat, Nov 14

2:35 pm - 8:35 pmSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

22h 00m2 stops Reykjavik Keflavik Intl London Gatwick

7:40 am - 9:32 amLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

33h 52m3 stops Madrid Barajas Montreal Pierre Elliott Trudeau Intl Vancouver Intl

$1,130Multiple Airlines

Sun, Nov 8 - Sat, Nov 14

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

United Airlines flights from Seattle to Lisbon

Our best United Airlines deals on Seattle to Lisbon flight tickets

United Airlines

Dec 1

SEA8:09 amSeattle/Tacoma Intl

17h 56m

1 stop

LIS10:05 amLisbon Humberto Delgado

Dec 8

LIS12:50 pmLisbon Humberto Delgado

32h 11m

2 stops

SEA1:01 pmSeattle/Tacoma Intl

$789

United Airlines

Dec 9

SEA2:50 pmSeattle/Tacoma Intl

24h 40m

1 stop

LIS11:30 pmLisbon Humberto Delgado

Dec 15

LIS12:50 pmLisbon Humberto Delgado

35h 28m

2 stops

SEA4:18 pmSeattle/Tacoma Intl

$791

United Airlines

Dec 9

SEA8:30 amSeattle/Tacoma Intl

15h 40m

2 stops

LIS8:10 amLisbon Humberto Delgado

Dec 15

LIS12:20 pmLisbon Humberto Delgado

19h 24m

2 stops

SEA11:44 pmSeattle/Tacoma Intl

$796

Delta flights from Seattle to Lisbon

Our best Delta deals on Seattle to Lisbon flight tickets

Delta

Nov 29

SEA3:25 pmSeattle/Tacoma Intl

15h 45m

1 stop

LIS3:10 pmLisbon Humberto Delgado

Dec 8

LIS5:00 amLisbon Humberto Delgado

14h 50m

1 stop

SEA11:50 amSeattle/Tacoma Intl

$787

Delta

Jan 5

SEA4:05 pmSeattle/Tacoma Intl

15h 05m

1 stop

LIS3:10 pmLisbon Humberto Delgado

Jan 13

LIS5:00 amLisbon Humberto Delgado

14h 50m

1 stop

SEA11:50 amSeattle/Tacoma Intl

$792

Delta

Jan 10

SEA7:31 amSeattle/Tacoma Intl

16h 29m

1 stop

LIS8:00 amLisbon Humberto Delgado

Jan 18

LIS11:30 amLisbon Humberto Delgado

32h 20m

1 stop

SEA11:50 amSeattle/Tacoma Intl

$793

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Mon 11/23

2:35 pm-12:45 pm

1 stop14h 10m

Lisbon Humberto Delgado

Tue 12/8

1:55 pm-5:00 pm

1 stop35h 05m

$633

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Mon 11/23

2:35 pm-12:45 pm

1 stop14h 10m

Lisbon Humberto Delgado

Tue 12/8

1:55 pm-5:00 pm

1 stop35h 05m

$634

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Tue 12/1

7:45 am-3:45 pm

2 stops24h 00m

Lisbon Humberto Delgado

Mon 12/7

6:45 pm-6:22 pm

3 stops31h 37m

$728

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Thu 12/3

2:35 pm-9:50 pm

2 stops23h 15m

Lisbon Humberto Delgado

Wed 12/9

4:55 pm-5:00 pm

3 stops32h 05m

$741

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Wed 1/20

2:50 pm-11:30 pm

1 stop24h 40m

Lisbon Humberto Delgado

Wed 2/3

6:00 am-1:00 pm

1 stop15h 00m

$772

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Wed 1/13

2:50 pm-11:30 pm

1 stop24h 40m

Lisbon Humberto Delgado

Wed 1/20

6:00 am-1:00 pm

1 stop15h 00m

$772

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Mon 11/30

8:40 am-10:40 am

2 stops18h 00m

Lisbon Humberto Delgado

Wed 12/9

5:00 am-2:37 pm

2 stops17h 37m

$785

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Tue 12/1

7:05 pm-6:55 am

2 stops27h 50m

Lisbon Humberto Delgado

Wed 12/9

5:00 am-2:37 pm

2 stops17h 37m

$785

Quickest round-trip

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Wed 12/2

7:00 am-8:10 am

1 stop17h 10m

Lisbon Humberto Delgado

Wed 12/9

5:00 am-12:00 pm

1 stop15h 00m

$786

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Tue 12/1

8:09 am-10:05 am

1 stop17h 56m

Lisbon Humberto Delgado

Wed 12/9

5:00 am-12:00 pm

1 stop15h 00m

$786

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Layovers

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 $665 to $918.
The lowest price recently found on this route was $633.

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 $497. 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 $554.

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 $889 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 $810 on momondo.

Can stopping save me money on Seattle to Lisbon flights?

You could potentially save up to 84% 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 November 2026, prices for Seattle to Lisbon flights are approximately 88% 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

Best Price Found	$306
Fastest flight time	14h 15m
Direct flights	None

The best one-way flight to Lisbon from Seattle in the past 72 hours is $306. The best round-trip flight deal from Seattle to Lisbon found on momondo in the last 72 hours is $633.

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?
The number of operators available for flights from Seattle/Tacoma Intl Airport to Lisbon Humberto Delgado Airport is 12 as of November 2026.
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?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Seattle to Lisbon is Delta (27% of total bookings). The next most popular airlines are British Airways (27%), United Airlines (12%), and Lufthansa (8%).

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
Icelandair	PriceFrom $380	Free Cancellation	Rating 6.9 766 reviews	Search Icelandair flights
Lufthansa	PriceFrom $482	Free Cancellation	Rating 6.8 8,299 reviews	Search Lufthansa flights
British Airways	PriceFrom $482	Free Cancellation	Rating 6.7 8,280 reviews	Search British Airways flights
United Airlines	PriceFrom $482	Free Cancellation	Rating 7.3 10,464 reviews	Search United Airlines flights
KLM	PriceFrom $493	Free Cancellation	Rating 7.8 1,595 reviews	Search KLM flights
American Airlines	PriceFrom $497	Free Cancellation	Rating 7.0 12,222 reviews	Search American Airlines flights
Air France	PriceFrom $504	Free Cancellation	Rating 7.5 1,651 reviews	Search Air France flights
Delta	PriceFrom $559	Free Cancellation	Rating 7.8 8,697 reviews	Search Delta flights
Scandinavian Airlines	PriceFrom $567	Free Cancellation	Rating 7.4 2,030 reviews	Search Scandinavian Airlines flights
Turkish Airlines	PriceFrom $682	Free Cancellation	Rating 7.4 4,463 reviews	Search Turkish Airlines flights

Sintra

Setúbal

Nazaré

Figueira da Foz

Evora

Estoril

Fátima

Óbidos

Ericeira

Sesimbra

Leiria

Batalha

Sines

Costa da Caparica

Caldas da Rainha

Comporta

Oeiras

Peniche

Tomar

Torres Vedras

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.

An easier way to manage your Lisbon trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

Thu 12/3

Thu 12/10

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Portugal

Nearby airports

Airlines

Cabin classes

Other Portugal destinations

Other flights from Seattle

Complete your trip

Feeling lucky

Airports servicing Portugal

Cheap flights from Seattle to Lisbon from $306

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 11/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Seattle to Lisbon

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

United Airlines flights from Seattle to Lisbon

Our best United Airlines deals on Seattle to Lisbon flight tickets

Delta flights from Seattle to Lisbon

Our best Delta deals on Seattle to Lisbon flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Seattle to Lisbon that are best for you.

See travel insights to Lisbon from

How to get the cheapest flight ticket from Seattle to Lisbon

What is the typical price of a round-trip flight between Seattle and Lisbon?

What is the cheapest month to fly to Lisbon?

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

Can stopping save me money on Seattle to Lisbon flights?

How have Seattle to Lisbon flight prices changed over time?

What airlines fly to Lisbon?

Which airport is the most popular layover for flights between Seattle and Lisbon?

Which layover airport offers the lowest fares from Seattle to Lisbon?

Which layover airport has the shortest travel time from Seattle to Lisbon?

Which layover airport has the shortest connection time from Seattle to Lisbon?

When to book flights from Seattle to Lisbon

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

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying 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

Traveling to a place near Lisbon?

Why use momondo?

An easier way to manage your Lisbon trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Portugal

Airports servicing Portugal

Fly your favorite airline to Lisbon

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Lisbon

List of cabin classes available on flights landing in Lisbon. Availability may vary depending on flight origin and airline.

Popular cities in Portugal

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from Seattle

According to popular flight searches on momondo this year

Complete your trip to Lisbon

Explore popular destinations other users love

According to popular flight searches on momondo this year