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

Delta and Air Canada 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: 46% 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.

What airlines fly to Lisbon?

British Airways, Delta and United Airlines 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 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 layover airport has the shortest connection time from Seattle to Lisbon?

Munich (MUC) has the shortest average layover time for this route: 1h 22m.

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.

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 August 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.

$268 Cheap Flights from Seattle to Lisbon in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Seattle to Lisbon

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

2:35 pm - 12:50 pmSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

14h 15m1 stop Reykjavik Keflavik Intl

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

35h 00m1 stop Reykjavik Keflavik Intl

$733Icelandair

Wed, Jan 20 - Thu, Feb 4

7:15 pm - 9:20 amSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

30h 05m2 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

$735Multiple Airlines

Mon, Oct 19 - Wed, Nov 4

3:15 pm - 10:40 amSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

35h 25m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

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

15h 00m1 stop Frankfurt am Main

$736Lufthansa

Sun, Nov 8 - Wed, Nov 18

8:25 am - 10:30 amSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

18h 05m1 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

$741United Airlines

Mon, Oct 19 - Wed, Nov 4

3:15 pm - 9:20 amSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

34h 05m2 stops Vancouver Intl Toronto Pearson Intl

5:00 am - 6:22 pmLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

21h 22m2 stops Frankfurt am Main Vancouver Intl

$741Lufthansa

Sat, Feb 13 - Tue, Feb 23

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

$745United Airlines

Sun, Nov 8 - Wed, Nov 18

7:05 pm - 9:20 amSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

30h 15m2 stops Vancouver Intl Toronto Pearson Intl

5:00 am - 9:57 pmLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

24h 57m2 stops Frankfurt am Main Vancouver Intl

$748Air Canada

Sun, Nov 8 - Wed, Nov 18

8:40 am - 8:55 amSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

16h 15m2 stops Vancouver Intl Toronto Pearson Intl

5:00 am - 9:57 pmLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

24h 57m2 stops Frankfurt am Main Vancouver Intl

$748Air Canada

Wed, Nov 4 - Wed, Nov 18

4:05 pm - 5:30 pmSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

17h 25m1 stop Paris Charles de Gaulle

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

14h 47m1 stop Amsterdam Schiphol

$751Multiple Airlines

Tue, Jan 19 - Wed, Feb 3

3:40 pm - 1:50 pmSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

14h 10m1 stop Reykjavik Keflavik Intl

3:00 pm - 8:40 pmLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

13h 40m1 stop Reykjavik Keflavik Intl

$755Icelandair

Mon, Sep 28 - Tue, Oct 20

Cheap last minute flights

Enter your travel dates to find the best prices.

3:40 pm - 10:55 amSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

35h 15m3 stops Reykjavik Keflavik Intl Stockholm Arlanda Amsterdam Schiphol

7:45 pm - 8:40 pmLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

32h 55m3 stops Amsterdam Schiphol Stockholm Arlanda Reykjavik Keflavik Intl

$987Multiple Airlines

Thu, Aug 27 - Thu, Sep 3

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

31h 10m3 stops Reykjavik Keflavik Intl Kastrup Copenhagen Oslo Gardermoen

7:00 am - 9:40 amLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

34h 40m3 stops Madrid Barajas Halifax Intl Calgary

$998Multiple Airlines

Thu, Aug 27 - Thu, Sep 3

3:40 pm - 9:35 pmSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

21h 55m2 stops Reykjavik Keflavik Intl Dublin

9:15 pm - 5:55 pmLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

28h 40m3 stops Barcelona-El Prat Dublin Reykjavik Keflavik Intl

$1,008Multiple Airlines

Fri, Aug 28 - Thu, Sep 3

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

31h 10m3 stops Reykjavik Keflavik Intl Kastrup Copenhagen Oslo Gardermoen

6:25 pm - 6:45 pmLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

32h 20m2 stops Montreal Pierre Elliott Trudeau Intl Calgary

$1,114Multiple Airlines

Thu, Aug 27 - Thu, Sep 3

1:30 pm - 2:55 pmSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

17h 25m1 stop Paris Charles de Gaulle

11:55 am - 4:35 pmLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

36h 40m1 stop Amsterdam Schiphol

$1,217Delta

Sun, Aug 30 - Mon, Sep 7

7:15 am - 11:15 amSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

20h 00m2 stops Chicago O'Hare Intl Paris Charles de Gaulle

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

14h 47m1 stop Amsterdam Schiphol

$1,281Delta

Sun, Aug 30 - Mon, Sep 7

1:30 pm - 5:50 pmSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

20h 20m1 stop Paris Charles de Gaulle

5:00 am - 4:35 pmLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

19h 35m1 stop Amsterdam Schiphol

$1,286Delta

Fri, Aug 28 - Thu, Sep 3

7:00 pm - 9:50 pmSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

18h 50m2 stops Reykjavik Keflavik Intl Amsterdam Schiphol

11:00 am - 11:45 amLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

32h 45m2 stops Barcelona-El Prat Reykjavik Keflavik Intl

$1,389Icelandair

Sun, Aug 30 - Sun, Sep 6

5:50 am - 9:20 amSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

19h 30m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

5:05 am - 10:47 pmLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

25h 42m2 stops Frankfurt am Main Vancouver Intl

$1,499Air Canada

Sun, Aug 30 - Tue, Sep 8

7:20 pm - 9:20 amSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

30h 00m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

6:45 am - 6:32 pmLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

19h 47m2 stops Frankfurt am Main Vancouver Intl

$1,499Air Canada

Sat, Aug 29 - Tue, Sep 8

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Delta flights from Seattle to Lisbon

Our best Delta deals on Seattle to Lisbon flight tickets

Delta

Jan 18

SEA7:20 amSeattle/Tacoma Intl

16h 40m

1 stop

LIS8:00 amLisbon Humberto Delgado

Feb 5

LIS5:00 amLisbon Humberto Delgado

14h 47m

1 stop

SEA11:47 amSeattle/Tacoma Intl

$751

Delta

Jan 20

SEA3:25 pmSeattle/Tacoma Intl

36h 00m

1 stop

LIS11:25 amLisbon Humberto Delgado

Feb 1

LIS11:30 amLisbon Humberto Delgado

32h 17m

1 stop

SEA11:47 amSeattle/Tacoma Intl

$753

Delta

Jan 20

SEA7:20 amSeattle/Tacoma Intl

20h 00m

2 stops

LIS11:20 amLisbon Humberto Delgado

Feb 1

LIS11:30 amLisbon Humberto Delgado

32h 17m

1 stop

SEA11:47 amSeattle/Tacoma Intl

$755

Icelandair flights from Seattle to Lisbon

Our best Icelandair deals on Seattle to Lisbon flight tickets

Icelandair

Jan 20

SEA2:35 pmSeattle/Tacoma Intl

14h 15m

1 stop

LIS12:50 pmLisbon Humberto Delgado

Feb 4

LIS2:00 pmLisbon Humberto Delgado

35h 00m

1 stop

SEA5:00 pmSeattle/Tacoma Intl

$733

Icelandair

Oct 11

SEA7:00 pmSeattle/Tacoma Intl

34h 50m

1 stop

LIS1:50 pmLisbon Humberto Delgado

Oct 25

LIS2:00 pmLisbon Humberto Delgado

13h 40m

1 stop

SEA8:40 pmSeattle/Tacoma Intl

$762

Icelandair

Oct 17

SEA3:40 pmSeattle/Tacoma Intl

14h 10m

1 stop

LIS1:50 pmLisbon Humberto Delgado

Oct 29

LIS2:00 pmLisbon Humberto Delgado

35h 00m

1 stop

SEA6:00 pmSeattle/Tacoma Intl

$770

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Wed 1/20

2:35 pm-12:50 pm

1 stop14h 15m

Lisbon Humberto Delgado

Thu 2/4

2:00 pm-5:00 pm

1 stop35h 00m

$733

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Mon 10/19

7:15 pm-9:20 am

2 stops30h 05m

Lisbon Humberto Delgado

Wed 11/4

5:00 am-2:37 pm

2 stops17h 37m

$735

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Sun 11/8

3:15 pm-10:40 am

2 stops35h 25m

Lisbon Humberto Delgado

Wed 11/18

5:00 am-12:00 pm

1 stop15h 00m

$736

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Mon 10/19

8:25 am-10:30 am

1 stop18h 05m

Lisbon Humberto Delgado

Wed 11/4

5:00 am-12:00 pm

1 stop15h 00m

$741

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Sat 2/13

3:15 pm-9:20 am

2 stops34h 05m

Lisbon Humberto Delgado

Tue 2/23

5:00 am-6:22 pm

2 stops21h 22m

$741

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Sun 11/8

8:09 am-10:05 am

1 stop17h 56m

Lisbon Humberto Delgado

Wed 11/18

5:00 am-12:00 pm

1 stop15h 00m

$745

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Sun 11/8

7:05 pm-9:20 am

2 stops30h 15m

Lisbon Humberto Delgado

Wed 11/18

5:00 am-9:57 pm

2 stops24h 57m

$748

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Wed 11/4

8:40 am-8:55 am

2 stops16h 15m

Lisbon Humberto Delgado

Wed 11/18

5:00 am-9:57 pm

2 stops24h 57m

$748

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Tue 1/19

4:05 pm-5:30 pm

1 stop17h 25m

Lisbon Humberto Delgado

Wed 2/3

5:00 am-11:47 am

1 stop14h 47m

$751

Quickest round-trip

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Mon 9/28

3:40 pm-1:50 pm

1 stop14h 10m

Lisbon Humberto Delgado

Tue 10/20

3:00 pm-8:40 pm

1 stop13h 40m

$755

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 $779 to $1,152.
The lowest price recently found on this route was $733.

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 $552.

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 $853 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 $759 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 5% 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	$268
Fastest flight time	13h 45m
Direct flights	None

The best one-way flight to Lisbon from Seattle in the past 72 hours is $268. The best round-trip flight deal from Seattle to Lisbon found on momondo in the last 72 hours is $733.

The fastest flight from Seattle to Lisbon takes 13h 45m

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. 13h 45m 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 August 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 (26% of total bookings). The next most popular airlines are Delta (23%), United Airlines (13%), 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 6.9 737 reviews	Search Icelandair flights
Lufthansa	PriceFrom $471	Free Cancellation	Rating 6.8 8,221 reviews	Search Lufthansa flights
British Airways	PriceFrom $482	Free Cancellation	Rating 6.7 8,188 reviews	Search British Airways flights
United Airlines	PriceFrom $482	Free Cancellation	Rating 7.4 10,122 reviews	Search United Airlines flights
American Airlines	PriceFrom $497	Free Cancellation	Rating 7.1 11,993 reviews	Search American Airlines flights
KLM	PriceFrom $503	Free Cancellation	Rating 7.8 1,565 reviews	Search KLM flights
Air France	PriceFrom $504	Free Cancellation	Rating 7.5 1,647 reviews	Search Air France flights
Air Canada	PriceFrom $543	Free Cancellation	Rating 7.1 11,532 reviews	Search Air Canada flights
Delta	PriceFrom $554	Free Cancellation	Rating 7.8 8,529 reviews	Search Delta flights
Scandinavian Airlines	PriceFrom $567	Free Cancellation	Rating 7.4 1,963 reviews	Search Scandinavian Airlines flights

Sintra

Fátima

Figueira da Foz

Nazaré

Setúbal

Estoril

Evora

Ericeira

Óbidos

Batalha

Leiria

Peniche

Oeiras

Sesimbra

Zambujeira do Mar

Comporta

Sines

Caldas da Rainha

Costa da Caparica

Tomar

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

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Cheap flights from Seattle to Lisbon from $268

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 9/27. 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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Delta flights from Seattle to Lisbon

Our best Delta deals on Seattle to Lisbon flight tickets

Icelandair flights from Seattle to Lisbon

Our best Icelandair deals on Seattle to Lisbon flight tickets

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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 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

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.

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