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

Flights connecting via Munich (MUC) have the shortest average one-way travel time: 14h 39m.

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

Munich (MUC) has the shortest average layover time for this route: 1h 23m.

What airlines fly to Lisbon?

British Airways, United Airlines and Delta are the top three most popular airlines that fly to Lisbon from Seattle according to our data. British Airways is the first choice among our users, with 36% of people opting to fly with this airline when traveling to Lisbon. Keep in mind that there are 14 different airlines that fly to Lisbon on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Seattle/Tacoma Intl to Lisbon Humberto Delgado?

Icelandair, Delta, and British Airways are the most popular carriers operating from Seattle/Tacoma Intl to Lisbon Humberto Delgado

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

London (LHR) was the most common stop: 49% 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 Reykjavik (KEF) offer the lowest average round-trip price of $513.

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 14 as of April 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.

$272 Cheap Flights from Seattle to Lisbon in 2026

Q: 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 $929 to $565. The lowest price recently found on this route was $662.

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7:10 pm - 11:20 pm

SEA

LIS

20h 10m

1 stop

5:05 pm - 5:15 pm

LIS

SEA

32h 10m

1 stop

$662Turkish Airlines

Tue, Sep 8 - Tue, Sep 29

7:10 pm - 11:20 pm

SEA

LIS

20h 10m

1 stop

5:55 am - 5:15 pm

LIS

SEA

19h 20m

1 stop

$663Turkish Airlines

Tue, Aug 25 - Wed, Sep 16

2:10 pm - 10:15 pm

SEA

LIS

24h 05m

1 stop

6:45 am - 7:23 pm

LIS

SEA

20h 38m

2 stops

$673Lufthansa

Mon, Apr 13 - Tue, Apr 21

7:10 pm - 9:35 pm

SEA

LIS

18h 25m

1 stop

10:15 pm - 5:10 pm

LIS

SEA

26h 55m

1 stop

$674Aer Lingus

Mon, Apr 13 - Tue, Apr 21

7:10 pm - 11:20 pm

SEA

LIS

20h 10m

1 stop

11:00 am - 10:40 am

LIS

SEA

31h 40m

1 stop

$692Turkish Airlines

Tue, Aug 25 - Fri, Sep 4

3:55 pm - 11:00 pm

SEA

LIS

23h 05m

2 stops

7:15 am - 10:04 pm

LIS

SEA

22h 49m

2 stops

$695Scandinavian Airlines

Tue, Sep 15 - Wed, Oct 7

6:40 pm - 10:25 pm

SEA

LIS

19h 45m

1 stop

7:45 pm - 11:42 am

LIS

SEA

23h 57m

1 stop

$697Multiple Airlines

Sun, Apr 26 - Sun, May 3

7:10 pm - 11:20 pm

SEA

LIS

20h 10m

1 stop

5:55 am - 5:15 pm

LIS

SEA

19h 20m

1 stop

$698Turkish Airlines

Tue, Sep 1 - Mon, Sep 14

7:10 pm - 9:35 pm

SEA

LIS

18h 25m

1 stop

10:15 pm - 5:10 pm

LIS

SEA

26h 55m

1 stop

$699Aer Lingus

Mon, Apr 13 - Tue, Apr 21

7:10 pm - 9:55 am

SEA

LIS

30h 45m

1 stop

5:55 am - 5:15 pm

LIS

SEA

19h 20m

1 stop

$700Turkish Airlines

Mon, Sep 21 - Mon, Sep 28

Delta flights from Seattle to Lisbon

Our best Delta deals on Seattle to Lisbon flight tickets

Delta

Apr 27

SEA7:15 amSeattle/Tacoma Intl

20h 00m

2 stops

LIS11:15 amLisbon Humberto Delgado

May 5

LIS5:00 amLisbon Humberto Delgado

14h 42m

1 stop

SEA11:42 amSeattle/Tacoma Intl

$710

Delta

Apr 27

SEA9:50 amSeattle/Tacoma Intl

21h 05m

2 stops

LIS2:55 pmLisbon Humberto Delgado

May 4

LIS5:00 amLisbon Humberto Delgado

21h 26m

2 stops

SEA6:26 pmSeattle/Tacoma Intl

$720

Delta

Apr 29

SEA7:15 amSeattle/Tacoma Intl

19h 40m

2 stops

LIS10:55 amLisbon Humberto Delgado

May 6

LIS5:00 amLisbon Humberto Delgado

19h 48m

2 stops

SEA4:48 pmSeattle/Tacoma Intl

$724

Scandinavian Airlines flights from Seattle to Lisbon

Our best Scandinavian Airlines deals on Seattle to Lisbon flight tickets

Scandinavian Airlines

Sep 15

SEA3:55 pmSeattle/Tacoma Intl

23h 05m

2 stops

LIS11:00 pmLisbon Humberto Delgado

Oct 7

LIS7:15 amLisbon Humberto Delgado

22h 49m

2 stops

SEA10:04 pmSeattle/Tacoma Intl

$695

Scandinavian Airlines

Sep 15

SEA3:55 pmSeattle/Tacoma Intl

23h 05m

2 stops

LIS11:00 pmLisbon Humberto Delgado

Oct 7

LIS7:15 amLisbon Humberto Delgado

23h 11m

2 stops

SEA10:26 pmSeattle/Tacoma Intl

$711

Scandinavian Airlines

Sep 29

SEA7:20 amSeattle/Tacoma Intl

24h 15m

2 stops

LIS3:35 pmLisbon Humberto Delgado

Oct 13

LIS9:15 pmLisbon Humberto Delgado

32h 49m

2 stops

SEA10:04 pmSeattle/Tacoma Intl

$726

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Tue 9/8

7:10 pm-11:20 pm

1 stop20h 10m

Lisbon Humberto Delgado

Tue 9/29

5:05 pm-5:15 pm

1 stop32h 10m

$662

Quickest round-trip

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Tue 8/25

7:10 pm-11:20 pm

1 stop20h 10m

Lisbon Humberto Delgado

Wed 9/16

5:55 am-5:15 pm

1 stop19h 20m

$663

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Mon 4/13

2:10 pm-10:15 pm

1 stop24h 05m

Lisbon Humberto Delgado

Tue 4/21

6:45 am-7:23 pm

2 stops20h 38m

$673

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Mon 4/13

7:10 pm-9:35 pm

1 stop18h 25m

Lisbon Humberto Delgado

Tue 4/21

10:15 pm-5:10 pm

1 stop26h 55m

$674

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Tue 8/25

7:10 pm-11:20 pm

1 stop20h 10m

Lisbon Humberto Delgado

Fri 9/4

11:00 am-10:40 am

1 stop31h 40m

$692

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Tue 9/15

3:55 pm-11:00 pm

2 stops23h 05m

Lisbon Humberto Delgado

Wed 10/7

7:15 am-10:04 pm

2 stops22h 49m

$695

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Sun 4/26

6:40 pm-10:25 pm

1 stop19h 45m

Lisbon Humberto Delgado

Sun 5/3

7:45 pm-11:42 am

1 stop23h 57m

$697

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Tue 9/1

7:10 pm-11:20 pm

1 stop20h 10m

Lisbon Humberto Delgado

Mon 9/14

5:55 am-5:15 pm

1 stop19h 20m

$698

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Mon 4/13

7:10 pm-9:35 pm

1 stop18h 25m

Lisbon Humberto Delgado

Tue 4/21

10:15 pm-5:10 pm

1 stop26h 55m

$699

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Mon 9/21

7:10 pm-9:55 am

1 stop30h 45m

Lisbon Humberto Delgado

Mon 9/28

5:55 am-5:15 pm

1 stop19h 20m

$700

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?

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 $492. 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 $552.

How far in advance should I book a flight 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 $814 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 $739 on momondo.

Can stopping save me money on Seattle to Lisbon flights?

You could potentially save up to 1% 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 April 2026, prices for Seattle to Lisbon flights are approximately 39% 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	15h 10m
Direct flights	None

The fastest flight from Seattle to Lisbon takes 15h 10m

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. 15h 10m 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 14 as of April 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 British Airways (23% of total bookings). The next most popular airlines are United Airlines (16%), Delta (15%), and Lufthansa (10%).

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 $348	Free Cancellation	Rating 7.0 630 reviews	Search Icelandair flights
British Airways	PriceFrom $482	Free Cancellation	Rating 6.7 7,841 reviews	Search British Airways flights
Lufthansa	PriceFrom $484	Free Cancellation	Rating 6.8 7,883 reviews	Search Lufthansa flights
United Airlines	PriceFrom $494	Free Cancellation	Rating 7.4 9,533 reviews	Search United Airlines flights
KLM	PriceFrom $503	Free Cancellation	Rating 7.8 1,482 reviews	Search KLM flights
Air France	PriceFrom $530	Free Cancellation	Rating 7.4 1,561 reviews	Search Air France flights
Air Canada	PriceFrom $543	Free Cancellation	Rating 7.1 10,880 reviews	Search Air Canada flights
Delta	PriceFrom $545	Free Cancellation	Rating 7.9 8,369 reviews	Search Delta flights
Aer Lingus	PriceFrom $553	Free Cancellation	Rating 7.2 1,495 reviews	Search Aer Lingus flights
American Airlines	PriceFrom $558	Free Cancellation	Rating 7.1 11,548 reviews	Search American Airlines flights

Sintra

Fátima

Ericeira

Nazaré

Setúbal

Peniche

Estoril

Evora

Oeiras

Sesimbra

Leiria

Figueira da Foz

Zambujeira do Mar

Óbidos

Batalha

Tomar

Comporta

Almada

Sines

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.

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Cheap flights from Seattle to Lisbon from $272

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 5/4. 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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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 to Lisbon?

Can stopping save me money on Seattle to Lisbon flights?

How have Seattle to Lisbon flight prices changed over time?

What is the cheapest airline that flies from Seattle/Tacoma Intl to Lisbon Humberto Delgado?

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

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

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

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

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