What is the cheapest flight from Seattle to Lisbon?

In the last 3 days, the lowest price for a flight from Seattle to Lisbon was C$ 593 for a one-way ticket and C$ 655 for a round-trip. Visit our flight page for the latest deals!>/a>

Which aircraft models fly most regularly from Seattle to Lisbon?

We unfortunately don’t have that data for this specific route.

Which airline alliances offer flights from Seattle to Lisbon?

Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Seattle and Lisbon, with Star Alliance being the most commonly used for this route.

How early should I get to SEA on the date I’m supposed to travel?

On the date you’re supposed to fly to Lisbon from Seattle, it’s in your best interest to reach SEA at least 2h ahead of your flight. Getting to this airport this early will give you adequate time to go through the airport’s time-consuming checkpoints and check out the interesting sites available in its terminals.

If you’d like to visit a spa while waiting for your flight at SEA, you’re in luck, as this airport is home to the fabulous Terminal Gateway Spa. Situated a short distance from Gate A5, this spa features exceptional professionals. Given that it offers its services at affordable rates, you won’t incur an exaggerated bill at this spa.

Can I leave my luggage at LIS?

LIS has a luggage storage facility. Located next to car park P2, this facility offers secure storage services at affordable rates. It’s worth noting that as it is usually open 24/7, you can pick up your luggage at this facility whenever you feel like it.

Where can I shower at LIS?

At LIS, you can shower at either ANA Lounge, located on the 6th floor of Terminal 1, or the Airport Business Center, near check-in desks 14 to 36 in Terminal 1. Please note that to gain entry to either, you’ll have to pay an entry fee.

How does KAYAK find such low prices on flights from Seattle to Lisbon?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Lisbon. Visit our flight page for the latest deals!>/a>

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Lisbon?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Lisbon from Seattle is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from Seattle to Lisbon?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Lisbon with an airline and back to Seattle with another airline. Visit our flight page for the latest deals!>/a>

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Lisbon?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Lisbon from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

Which airlines provide the cheapest flights from Seattle to Lisbon?

In the past 3 days, the cheapest round-trip tickets from Seattle to Lisbon were found on Icelandair (C$ 907) and Scandinavian Airlines (C$ 936).

C$ 821 CHEAP FLIGHTS from Seattle to Lisbon (SEA - LIS)

SEA - LIS

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Cheap Flight Deals from Seattle to Lisbon (SEA-LIS)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Lisbon that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Seattle to Lisbon

KAYAK's recommended round-trip deals from the most popular airlines that fly from Seattle to Lisbon.

Discover the best prices for you by selecting your travel dates on KAYAK.

Choose your dates

7:00 p.m. - 9:20 p.m.SEA-LIS

18h 20m1 stop

10:20 p.m. - 5:50 p.m.LIS-SEA

27h 30m1 stop

C$ 907Icelandair

Find Deal

Wed, 27 Aug - Thu, 2 Oct

4:20 p.m. - 9:50 p.m.SEA-LIS

21h 30m2 stops

7:15 a.m. - 2:00 p.m.LIS-SEA

14h 45m1 stop

C$ 920

Find Deal

Wed, 1 Oct - Wed, 15 Oct

4:00 p.m. - 7:35 p.m.SEA-LIS

19h 35m2 stops

7:15 a.m. - 1:50 p.m.LIS-SEA

14h 35m1 stop

C$ 921

Find Deal

Wed, 27 Aug - Wed, 10 Sep

4:20 p.m. - 8:40 p.m.SEA-LIS

20h 20m1 stop

7:15 a.m. - 2:00 p.m.LIS-SEA

14h 45m1 stop

C$ 936Scandinavian Airlines

Find Deal

Sun, 28 Sep - Wed, 15 Oct

4:20 p.m. - 9:00 a.m.SEA-LIS

32h 40m1 stop

7:15 a.m. - 2:00 p.m.LIS-SEA

14h 45m1 stop

C$ 964Scandinavian Airlines

Find Deal

Fri, 3 Oct - Wed, 15 Oct

7:20 a.m. - 9:20 a.m.SEA-LIS

18h 00m1 stop

11:00 a.m. - 4:38 p.m.LIS-SEA

37h 38m2 stops

C$ 972United Airlines

Find Deal

Tue, 7 Oct - Tue, 4 Nov

8:45 a.m. - 8:20 a.m.SEA-LIS

15h 35m2 stops

11:00 a.m. - 11:40 a.m.LIS-SEA

32h 40m2 stops

C$ 978United Airlines

Find Deal

Tue, 7 Oct - Tue, 4 Nov

7:20 a.m. - 9:20 a.m.SEA-LIS

18h 00m1 stop

5:00 a.m. - 11:26 p.m.LIS-SEA

25h 26m3 stops

C$ 989United Airlines

Find Deal

Tue, 14 Oct - Tue, 28 Oct

1:30 p.m. - 5:55 p.m.SEA-LIS

20h 25m1 stop

11:05 a.m. - 9:40 p.m.LIS-SEA

18h 35m1 stop

C$ 1,127British Airways

Find Deal

Tue, 15 Jul - Wed, 27 Aug

1:29 p.m. - 3:40 p.m.SEA-LIS

18h 11m2 stops

5:05 p.m. - 11:10 a.m.LIS-SEA

26h 05m1 stop

C$ 1,158British Airways

Find Deal

Wed, 1 Oct - Mon, 13 Oct

KAYAK's insights & trends for Seattle to Lisbon flights

Get data-powered insights and trends into flights from Seattle to Lisbon to help you find the cheapest flights, the best time to fly and much more.

Prices

Airlines

What is the cheapest month to fly from Seattle to Lisbon?

The cheapest month for flights from Seattle to Lisbon is January, where tickets cost C$ 1,059 (return) on average. On the other hand, the most expensive months are June and December, where the average cost of round-trip tickets is C$ 1,831 and C$ 1,701 respectively.

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

To get a below average price on the flight from Seattle to Lisbon, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Find deals

Low season	January
High season	September
Cheapest flight	C$ 821

Best time to beat the crowds (22% less expensive on average)

Most popular time to fly (4% more expensive on average)

Flight from Seattle to Lisbon

When to book flights from Seattle to Lisbon

Are your dates flexible? Find out the best times to travel from Seattle to Lisbon based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

How early should I get to SEA on the date I’m supposed to travel?
On the date you’re supposed to fly to Lisbon from Seattle, it’s in your best interest to reach SEA at least 2h ahead of your flight. Getting to this airport this early will give you adequate time to go through the airport’s time-consuming checkpoints and check out the interesting sites available in its terminals.
Does SEA have a spa?
If you’d like to visit a spa while waiting for your flight at SEA, you’re in luck, as this airport is home to the fabulous Terminal Gateway Spa. Situated a short distance from Gate A5, this spa features exceptional professionals. Given that it offers its services at affordable rates, you won’t incur an exaggerated bill at this spa.
Can I leave my luggage at LIS?
LIS has a luggage storage facility. Located next to car park P2, this facility offers secure storage services at affordable rates. It’s worth noting that as it is usually open 24/7, you can pick up your luggage at this facility whenever you feel like it.
Where can I shower at LIS?
At LIS, you can shower at either ANA Lounge, located on the 6th floor of Terminal 1, or the Airport Business Center, near check-in desks 14 to 36 in Terminal 1. Please note that to gain entry to either, you’ll have to pay an entry fee.
What is the cheapest flight from Seattle to Lisbon?
In the last 3 days, the lowest price for a flight from Seattle to Lisbon was C$ 593 for a one-way ticket and C$ 655 for a round-trip.
Which aircraft models fly most regularly from Seattle to Lisbon?
We unfortunately don’t have that data for this specific route.
Which airline alliances offer flights from Seattle to Lisbon?
Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Seattle and Lisbon, with Star Alliance being the most commonly used for this route.
How does KAYAK find such low prices on flights from Seattle to Lisbon?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Lisbon.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Lisbon?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Lisbon from Seattle is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Seattle to Lisbon?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Lisbon with an airline and back to Seattle with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Lisbon?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Lisbon from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

If you are traveling to Lisbon with your kids, you should consider checking out Seattle-Tacoma International Airport’s (SEA) children’s play area. Located between the Central Terminal and Gates A, this children’s play area features a variety of toys and soft play areas for toddlers. Given that it is normally open round-the-clock, you can count on finding it open regardless of the time.
SEA features several nursing rooms. These nursing rooms are near Gates A9, C10, D10, D23, and N2. As they all feature changing tables, you can comfortably change your baby’s diapers in any of these rooms.
To pay for services and purchase goods easily once you land at Humberto Delgado Airport (LIS), you should convert some of your cash to the local currency. At SEA, you’ll be able to do so, as this airport features currency exchange sites. They are located in the ticketing level and baggage claim area in the Main Terminal and near Gates A and S.
LIS features information desks in its Arrivals Hall and Departures Hall. At any of these information desks, open from 7 am to 12 am, you can rest assured of getting the help you need once you land at this airport, as they are both manned by informed airport staff.
If you have the necessary documents, you can easily rent a car at LIS, as this airport features counters for car rental agencies such as Hertz, SIXT, Europcar, Avis, Budget, and other local car rentals. As the counters for these car rentals are within the airport’s terminal complex, you won’t need any form of ground transportation to get to the counter of your preferred car rental.

See more tips

Top airline flying from Seattle to Lisbon

See real verified KAYAK customer reviews for airlines flying from Seattle to Lisbon. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.

Need help choosing which airline to fly with from Seattle to Lisbon? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.

6.6

British AirwaysOverall score based on 6809 reviews

6.7Comfort

6.8Boarding

6.4Entertainment

7.6Crew

6.3Food

Airline reviews

The boarding process was quite loud and chaotic. The flight attendants kept barking over the PA system about people needing to only stow large items in the overhead bins. During the one and only service, I was hit by the service cart. At the same time, a passenger was returning from the bathroom and the crew definitely saw him but stopped a few seats short of allowing him to sit down before starting service and made him wait a good 10 minutes before passing his seat and allowing him to sit down, after which he had to ask for his snack and beverage or he would have been passed over. Neither flight attendant thanked passengers as they left; in fact, I did not see them again once the plane door was opened.

6.0 GoodAnonymous, Apr 2025ORD - EWR