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Cheap flights from Seattle to Lisbon from R6 455

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Seattle to Lisbon

Cheap return flights

Enter your travel dates to find the best prices.
Icelandair Logo
14:35 - 12:50SEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
14h 15m1 stop Reykjavik Keflavik Intl
Icelandair Logo
11:35 - 17:00LIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
13h 25m1 stop Reykjavik Keflavik Intl
R12 344Icelandair
Wed, Feb 17 - Tue, Mar 2
Delta Logo
16:05 - 17:30SEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
17h 25m1 stop Paris Charles de Gaulle
Delta Logo
5:00 - 11:50LIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
14h 50m1 stop Amsterdam Schiphol
R13 092Delta
Tue, Dec 29 - Thu, Jan 14
United Airlines Logo
23:44 - 6:55SEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
23h 11m2 stops Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl
United Airlines Logo
5:00 - 12:00LIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
15h 00m1 stop Frankfurt am Main
R13 142United Airlines
Tue, Dec 29 - Thu, Jan 14
United Airlines Logo
14:50 - 23:30SEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
24h 40m1 stop Munich Franz Josef Strauss
United Airlines Logo
12:50 - 16:18LIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
35h 28m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl
R13 159United Airlines
Wed, Dec 9 - Tue, Dec 15
Delta Logo
16:05 - 15:10SEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
15h 05m1 stop Paris Charles de Gaulle
Delta Logo
5:00 - 11:50LIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
14h 50m1 stop Amsterdam Schiphol
R13 176Delta
Tue, Jan 5 - Wed, Jan 13
United Airlines Logo
8:30 - 8:10SEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
15h 40m2 stops Denver Intl Newark
United Airlines Logo
6:00 - 13:00LIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
15h 00m1 stop Munich Franz Josef Strauss
R13 192United Airlines
Sun, Jan 10 - Fri, Jan 22
United Airlines Logo
23:44 - 10:40SEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
26h 56m2 stops Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl
United Airlines Logo
5:00 - 12:00LIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
15h 00m1 stop Frankfurt am Main
R13 225United Airlines
Sun, Jan 3 - Thu, Jan 14
United Airlines Logo
8:30 - 8:10SEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
15h 40m2 stops Denver Intl Newark
United Airlines Logo
12:20 - 23:44LIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
19h 24m2 stops Frankfurt am Main San Francisco
R13 242United Airlines
Wed, Dec 9 - Tue, Dec 15
United Airlines Logo
8:30 - 6:55SEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
38h 25m3 stops Denver Intl Newark Montreal Pierre Elliott Trudeau Intl
United Airlines Logo
6:00 - 13:00LIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
15h 00m1 stop Munich Franz Josef Strauss
R13 259United Airlines
Tue, Jan 5 - Wed, Jan 13
United Airlines Logo
5:00 - 10:20SEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
21h 20m2 stops Denver Intl Washington, D.C. Dulles Intl
United Airlines Logo
11:20 - 11:47LIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
32h 27m2 stops Toronto Pearson Intl Chicago O'Hare Intl
R13 275United Airlines
Wed, Dec 30 - Wed, Jan 13

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United Airlines flights from Seattle to Lisbon

Our best United Airlines deals on Seattle to Lisbon flight tickets
United Airlines
Dec 29
SEA23:44Seattle/Tacoma Intl
23h 11m
2 stops
LIS6:55Lisbon Humberto Delgado
Jan 14
LIS5:00Lisbon Humberto Delgado
15h 00m
1 stop
SEA12:00Seattle/Tacoma Intl
R13 142
United Airlines
Dec 9
SEA14:50Seattle/Tacoma Intl
24h 40m
1 stop
LIS23:30Lisbon Humberto Delgado
Dec 15
LIS12:50Lisbon Humberto Delgado
35h 28m
2 stops
SEA16:18Seattle/Tacoma Intl
R13 159
United Airlines
Jan 3
SEA23:44Seattle/Tacoma Intl
26h 56m
2 stops
LIS10:40Lisbon Humberto Delgado
Jan 14
LIS5:00Lisbon Humberto Delgado
15h 00m
1 stop
SEA12:00Seattle/Tacoma Intl
R13 225

Delta flights from Seattle to Lisbon

Our best Delta deals on Seattle to Lisbon flight tickets
Delta
Dec 29
SEA16:05Seattle/Tacoma Intl
17h 25m
1 stop
LIS17:30Lisbon Humberto Delgado
Jan 14
LIS5:00Lisbon Humberto Delgado
14h 50m
1 stop
SEA11:50Seattle/Tacoma Intl
R13 092
Delta
Jan 5
SEA16:05Seattle/Tacoma Intl
15h 05m
1 stop
LIS15:10Lisbon Humberto Delgado
Jan 13
LIS5:00Lisbon Humberto Delgado
14h 50m
1 stop
SEA11:50Seattle/Tacoma Intl
R13 176
Delta
Jan 10
SEA7:31Seattle/Tacoma Intl
16h 29m
1 stop
LIS8:00Lisbon Humberto Delgado
Jan 19
LIS5:00Lisbon Humberto Delgado
14h 50m
1 stop
SEA11:50Seattle/Tacoma Intl
R13 192

momondo Fare Finder

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

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Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Wed 17/2

14:35-12:50

1 stop14h 15m

Lisbon Humberto Delgado

Tue 2/3

11:35-17:00

1 stop13h 25m

R12 344

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Tue 29/12

16:05-17:30

1 stop17h 25m

Lisbon Humberto Delgado

Thu 14/1

5:00-11:50

1 stop14h 50m

R13 092

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Tue 29/12

23:44-6:55

2 stops23h 11m

Lisbon Humberto Delgado

Thu 14/1

5:00-12:00

1 stop15h 00m

R13 142

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Wed 9/12

14:50-23:30

1 stop24h 40m

Lisbon Humberto Delgado

Tue 15/12

12:50-16:18

2 stops35h 28m

R13 159

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Tue 5/1

16:05-15:10

1 stop15h 05m

Lisbon Humberto Delgado

Wed 13/1

5:00-11:50

1 stop14h 50m

R13 176

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Sun 10/1

8:30-8:10

2 stops15h 40m

Lisbon Humberto Delgado

Fri 22/1

6:00-13:00

1 stop15h 00m

R13 192

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Sun 3/1

23:44-10:40

2 stops26h 56m

Lisbon Humberto Delgado

Thu 14/1

5:00-12:00

1 stop15h 00m

R13 225

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Wed 9/12

8:30-8:10

2 stops15h 40m

Lisbon Humberto Delgado

Tue 15/12

12:20-23:44

2 stops19h 24m

R13 242

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Tue 5/1

8:30-6:55

3 stops38h 25m

Lisbon Humberto Delgado

Wed 13/1

6:00-13:00

1 stop15h 00m

R13 259

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Wed 30/12

5:00-10:20

2 stops21h 20m

Lisbon Humberto Delgado

Wed 13/1

11:20-11:47

2 stops32h 27m

R13 275

Flights are sorted by cheapest return flights first.

Showing 1-10 of 15 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 typical for flights on this route.

Typical prices usually range from R11 063 to R15 272.
The lowest price recently found on this route was R12 344.

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 R8 268. If you’re not able to fly to Lisbon in January, then February is your next best option. Flight prices from Seattle to Lisbon during February average around R9 216.

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 R14 796 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Lisbon from Seattle for as low as R13 475 on momondo.

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 return 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

R6 455

Direct flights

None
The best one-way flight to Lisbon from Seattle in the past 72 hours is R6 455. The best return flight deal from Seattle to Lisbon found on momondo in the last 72 hours is R12 344.
There are no direct flights from Seattle to Lisbon. There are no popular flight routes from Seattle to Lisbon.
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Frequently asked questions about flying from Seattle to Lisbon

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

    Lisbon Humberto Delgado is 8360,7 km away from Seattle/Tacoma Intl.

  • 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 refresh daily.

  • 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 stopovers 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 necessary travel and health documents for your Lisbon Humberto Delgado 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 licence 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.

Travelling to a place near Lisbon?

Book flights to Lisbon if you plan to visit one of these locations
Fátima
Estoril
Nazaré
Almada
Leiria
Sintra
Peniche
Setúbal

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Seattle to Lisbon . Millions of users trust and use momondo every year so you are in good hands.

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?

Yes. momondo can track prices for Seattle to Lisbon flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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