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Cheap flights from Seattle to Lisbon from $162

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 10/16. 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.
Virgin Atlantic Logo
7:38 am - 10:45 am
SEA
-
LIS
19h 07m
1 stop
Virgin Atlantic Logo
9:55 am - 11:20 pm
LIS
-
SEA
21h 25m
1 stop
$528Virgin Atlantic
Sun, Sep 6 - Sun, Sep 13
Virgin Atlantic Logo
9:53 am - 10:45 am
SEA
-
LIS
16h 52m
2 stops
Virgin Atlantic Logo
9:55 am - 11:20 pm
LIS
-
SEA
21h 25m
1 stop
$530Virgin Atlantic
Sun, Sep 6 - Sun, Sep 13
Virgin Atlantic Logo
6:00 am - 8:00 am
SEA
-
LIS
18h 00m
2 stops
Virgin Atlantic Logo
10:00 am - 10:12 pm
LIS
-
SEA
20h 12m
1 stop
$590Virgin Atlantic
Tue, Sep 22 - Sat, Oct 10
Scandinavian Airlines Logo
3:55 pm - 10:05 pm
SEA
-
LIS
22h 10m
1 stop
Scandinavian Airlines Logo
10:55 pm - 1:45 pm
LIS
-
SEA
22h 50m
1 stop
$611Scandinavian Airlines
Fri, Sep 4 - Sat, Sep 12
Scandinavian Airlines Logo
3:55 pm - 10:05 pm
SEA
-
LIS
22h 10m
1 stop
Scandinavian Airlines Logo
10:55 pm - 1:45 pm
LIS
-
SEA
22h 50m
1 stop
$620Scandinavian Airlines
Fri, Sep 11 - Sat, Sep 19
Scandinavian Airlines Logo
3:55 pm - 11:15 pm
SEA
-
LIS
23h 20m
1 stop
Scandinavian Airlines Logo
10:55 pm - 1:45 pm
LIS
-
SEA
22h 50m
1 stop
$702Scandinavian Airlines
Tue, Sep 1 - Sat, Sep 12
Virgin Atlantic Logo
9:53 am - 10:45 am
SEA
-
LIS
16h 52m
2 stops
Virgin Atlantic Logo
9:55 am - 11:55 pm
LIS
-
SEA
22h 00m
2 stops
$707Virgin Atlantic
Sun, Sep 6 - Sun, Sep 13
Scandinavian Airlines Logo
3:55 pm - 10:05 pm
SEA
-
LIS
22h 10m
1 stop
Scandinavian Airlines Logo
10:55 pm - 1:45 pm
LIS
-
SEA
22h 50m
1 stop
$712Scandinavian Airlines
Fri, Aug 21 - Sat, Sep 5
Multiple Airlines Logo
7:00 am - 9:45 pm
SEA
-
LIS
30h 45m
3 stops
Multiple Airlines Logo
6:10 am - 9:04 pm
LIS
-
SEA
22h 54m
2 stops
$713Multiple Airlines
Fri, Sep 4 - Sat, Sep 12
Scandinavian Airlines Logo
3:55 pm - 10:05 pm
SEA
-
LIS
22h 10m
1 stop
Scandinavian Airlines Logo
10:55 pm - 1:45 pm
LIS
-
SEA
22h 50m
1 stop
$716Scandinavian Airlines
Fri, Sep 4 - Sat, Sep 12

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Virgin Atlantic flights from Seattle to Lisbon

Our best Virgin Atlantic deals on Seattle to Lisbon flight tickets
Virgin Atlantic
Sep 6
SEA7:38 amSeattle/Tacoma Intl
19h 07m
1 stop
LIS10:45 amLisbon Humberto Delgado
Sep 13
LIS9:55 amLisbon Humberto Delgado
21h 25m
1 stop
SEA11:20 pmSeattle/Tacoma Intl
$528
Virgin Atlantic
Sep 6
SEA9:53 amSeattle/Tacoma Intl
16h 52m
2 stops
LIS10:45 amLisbon Humberto Delgado
Sep 13
LIS9:55 amLisbon Humberto Delgado
21h 25m
1 stop
SEA11:20 pmSeattle/Tacoma Intl
$530
Virgin Atlantic
Sep 22
SEA6:00 amSeattle/Tacoma Intl
18h 00m
2 stops
LIS8:00 amLisbon Humberto Delgado
Oct 10
LIS10:00 amLisbon Humberto Delgado
20h 12m
1 stop
SEA10:12 pmSeattle/Tacoma Intl
$590

Air Canada flights from Seattle to Lisbon

Our best Air Canada deals on Seattle to Lisbon flight tickets
Air Canada
Nov 8
SEA3:15 pmSeattle/Tacoma Intl
35h 25m
2 stops
LIS10:40 amLisbon Humberto Delgado
Nov 18
LIS5:00 amLisbon Humberto Delgado
24h 57m
2 stops
SEA9:57 pmSeattle/Tacoma Intl
$742
Air Canada
Nov 4
SEA8:40 amSeattle/Tacoma Intl
16h 15m
2 stops
LIS8:55 amLisbon Humberto Delgado
Nov 18
LIS5:00 amLisbon Humberto Delgado
24h 57m
2 stops
SEA9:57 pmSeattle/Tacoma Intl
$747

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 June 27, 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 - LIS

SEALIS

Seattle/Tacoma Intl

Sun 9/6

7:38 am-10:45 am

1 stop19h 07m

Lisbon Humberto Delgado

Sun 9/13

9:55 am-11:20 pm

1 stop21h 25m

$528

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Sun 9/6

9:53 am-10:45 am

2 stops16h 52m

Lisbon Humberto Delgado

Sun 9/13

9:55 am-11:20 pm

1 stop21h 25m

$530
Quickest round-trip

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Tue 9/22

6:00 am-8:00 am

2 stops18h 00m

Lisbon Humberto Delgado

Sat 10/10

10:00 am-10:12 pm

1 stop20h 12m

$590

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Fri 9/4

3:55 pm-10:05 pm

1 stop22h 10m

Lisbon Humberto Delgado

Sat 9/12

10:55 pm-1:45 pm

1 stop22h 50m

$611

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Fri 9/11

3:55 pm-10:05 pm

1 stop22h 10m

Lisbon Humberto Delgado

Sat 9/19

10:55 pm-1:45 pm

1 stop22h 50m

$620

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Tue 9/1

3:55 pm-11:15 pm

1 stop23h 20m

Lisbon Humberto Delgado

Sat 9/12

10:55 pm-1:45 pm

1 stop22h 50m

$702

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Sun 9/6

9:53 am-10:45 am

2 stops16h 52m

Lisbon Humberto Delgado

Sun 9/13

9:55 am-11:55 pm

2 stops22h 00m

$707

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Fri 8/21

3:55 pm-10:05 pm

1 stop22h 10m

Lisbon Humberto Delgado

Sat 9/5

10:55 pm-1:45 pm

1 stop22h 50m

$712

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Fri 9/4

7:00 am-9:45 pm

3 stops30h 45m

Lisbon Humberto Delgado

Sat 9/12

6:10 am-9:04 pm

2 stops22h 54m

$713

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Fri 9/4

3:55 pm-10:05 pm

1 stop22h 10m

Lisbon Humberto Delgado

Sat 9/12

10:55 pm-1:45 pm

1 stop22h 50m

$716

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?

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 $482. 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 $831 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 $726 on momondo.

Can stopping save me money on Seattle to Lisbon flights?

You could potentially save up to 3% 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 June 2026, prices for Seattle to Lisbon flights are approximately 6% 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 30m

Direct flights

None
The fastest flight from Seattle to Lisbon takes 14h 30m
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 30m 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
7.0
692 reviews
Search Icelandair flights
LufthansaPriceFrom $482Free CancellationRating
6.8
8,102 reviews
Search Lufthansa flights
British AirwaysPriceFrom $482Free CancellationRating
6.7
8,074 reviews
Search British Airways flights
United AirlinesPriceFrom $488Free CancellationRating
7.4
9,900 reviews
Search United Airlines flights
American AirlinesPriceFrom $497Free CancellationRating
7.1
11,778 reviews
Search American Airlines flights
KLMPriceFrom $503Free CancellationRating
7.8
1,531 reviews
Search KLM flights
Air FrancePriceFrom $504Free CancellationRating
7.5
1,614 reviews
Search Air France flights
Aer LingusPriceFrom $535Free CancellationRating
7.3
1,628 reviews
Search Aer Lingus flights
Air CanadaPriceFrom $543Free CancellationRating
7.1
11,269 reviews
Search Air Canada flights
DeltaPriceFrom $550Free CancellationRating
7.8
8,455 reviews
Search Delta flights

Traveling to a place near Lisbon?

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