SEA - LIS

C$ 445 Find Cheap Flights from Seattle to Lisbon – Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
C$ 1,007
Typical prices: C$ 835-C$ 1,499
United Airlines
Sun 4/2Thu 8/2
SEA - LIS • 1 stop
Cheapest one-way flights
C$ 445
Typical prices: C$ 587-C$ 907
Multiple Airlines
Tue 16/10
SEA - LIS • 2 stops
Direct flights
Not available
There are currently no direct flights between Seattle and Lisbon. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to book
19 weeks
in advance
Our data shows that travellers who book at least 19 weeks in advance save around 13% compared to booking last minute.
Insights
Insights
When to travel
January
Cheapest • 41% price drop
March
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Reykjavik Keflavik Intl (KEF)
Cheapest • Avg C$ 711 (round-trip)
Paris Charles de Gaulle (CDG)
Shortest trip • 14h 47m (one-way)
Insights
Insights
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you enjoy your trip to Lisbon!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Seattle to Lisbon (SEA-LIS)

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

Recent round-trip flight deals from Seattle to Lisbon

Thu, 4 Feb - Mon, 8 Feb
United Airlines Logo
7:45 a.m. - 8:55 a.m.SEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
17h 10m1 stop Toronto Pearson Intl
United Airlines Logo
11:20 a.m. - 12:45 p.m.LIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
33h 25m2 stops Toronto Pearson Intl Houston George Bush Intcntl
C$ 1,007United Airlines
Fri, 5 Feb - Sun, 14 Feb
British Airways Logo
6:45 p.m. - 5:55 p.m.SEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
15h 10m1 stop London Heathrow
British Airways Logo
10:40 a.m. - 4:50 p.m.LIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
14h 10m1 stop London Heathrow
C$ 1,010British Airways
Fri, 16 Oct - Thu, 22 Oct
British Airways Logo
8:20 p.m. - 11:10 p.m.SEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
18h 50m1 stop London Heathrow
British Airways Logo
7:20 a.m. - 8:15 p.m.LIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
20h 55m2 stops London Heathrow Chicago O'Hare Intl
C$ 1,012British Airways
Tue, 6 Oct - Wed, 14 Oct
Delta Logo
7:32 a.m. - 2:55 p.m.SEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
23h 23m2 stops Los Angeles Paris Charles de Gaulle
Delta Logo
5:00 a.m. - 11:52 a.m.LIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
14h 52m1 stop Amsterdam Schiphol
C$ 1,018Delta
Mon, 14 Dec - Mon, 21 Dec
United Airlines Logo
11:59 p.m. - 8:10 a.m.SEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
24h 11m2 stops Houston George Bush Intcntl Newark
United Airlines Logo
11:55 a.m. - 10:32 p.m.LIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
42h 37m2 stops Washington, D.C. Dulles Intl Chicago O'Hare Intl
C$ 1,021United Airlines
Mon, 28 Sep - Thu, 29 Oct
Delta Logo
9:59 a.m. - 2:55 p.m.SEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
20h 56m2 stops Los Angeles Paris Charles de Gaulle
Delta Logo
11:15 a.m. - 9:10 a.m.LIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
28h 55m2 stops Boston Logan Intl Salt Lake City
C$ 1,022Delta
Mon, 12 Oct - Mon, 19 Oct
United Airlines Logo
11:13 p.m. - 11:05 a.m.SEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
27h 52m2 stops Chicago O'Hare Intl Toronto Pearson Intl
United Airlines Logo
5:05 a.m. - 12:20 p.m.LIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
15h 15m1 stop Frankfurt am Main
C$ 1,024United Airlines
Wed, 25 Nov - Tue, 1 Dec
United Airlines Logo
5:05 a.m. - 8:55 a.m.SEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
19h 50m2 stops Denver Intl Toronto Pearson Intl
United Airlines Logo
12:20 p.m. - 11:44 p.m.LIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
19h 24m2 stops Frankfurt am Main San Francisco
C$ 1,026United Airlines
Mon, 5 Oct - Thu, 15 Oct
Delta Logo
6:40 p.m. - 8:50 a.m.SEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
30h 10m1 stop Paris Charles de Gaulle
Delta Logo
5:35 a.m. - 11:56 p.m.LIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
26h 21m2 stops Paris Charles de Gaulle Los Angeles
C$ 1,028Delta
Thu, 26 Nov - Tue, 1 Dec
Delta Logo
6:00 a.m. - 8:55 a.m.SEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
18h 55m2 stops Detroit Metropolitan Wayne County Boston Logan Intl
Delta Logo
11:15 a.m. - 11:54 p.m.LIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
20h 39m2 stops Boston Logan Intl Minneapolis St Paul
C$ 1,029Delta
Booking Insights

Price, demand, and travel trends for Seattle to Lisbon flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights from Seattle to Lisbon with more confidence.

How much is a round-trip flight from Seattle to Lisbon?

Round-trip flights from Seattle to Lisbon start at C$ 1,007. Prices are typical for this route right now, with typical round-trip fares ranging from C$ 835 to C$ 1,499. The lowest price found in the past 5 days was C$ 1,007 on United Airlines.

What's the cheapest day of the week to fly from Seattle to Lisbon?

Saturday is the cheapest day of the week to fly from Seattle to Lisbon and is 17% cheaper than the average day. Friday is the most expensive day with flight prices 17% higher than average. Based on deals found by KAYAK users in the last 12 months.

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

•January is the cheapest month to fly from Seattle to Lisbon at C$ 676 round-trip.
•June (C$ 1,669) and July (C$ 1,627) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 146% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from Seattle to Lisbon the cheapest?

Flights from Seattle to Lisbon are cheapest 19 weeks before departure. Booking in this window typically costs about 13% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Find deals

Key details for Seattle to Lisbon flights

Low season

December

Cheapest flight

C$ 445
Best time to beat the crowds but there is an average 14% increase in price.
Most popular time to fly and prices are also 19% lower on average.
Flights 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

Your Seattle to Lisbon flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

  • 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.

  • Which airports can I use when flying from Seattle to Lisbon?

    Flights from Seattle to Lisbon usually depart from Seattle/Tacoma Intl (SEA) and arrive at Lisbon Humberto Delgado (LIS).

  • Which cabin classes can I book on flights from Seattle to Lisbon?

    Two cabin classes are available on flights from Seattle to Lisbon:

    • Economy Class
    • Business Class

  • Which airports do connecting flights from Seattle to Lisbon pass through?

    One-stop flights from Seattle to Lisbon most commonly connect through:

    • London Heathrow (LHR) – 30% of one-stop connections
    • Paris Charles de Gaulle (CDG) – 20% of one-stop connections
    • Reykjavik Keflavik Intl (KEF) – 11% of one-stop connections
    • Philadelphia (PHL) – 9% of one-stop connections

    London Heathrow (LHR) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Seattle to Lisbon?

    On the Seattle to Lisbon route, being flexible with your departure day can save you up to 29%. Saturday is the cheapest day at C$ 957 round-trip on average, while Friday is the most expensive at C$ 1,343 – a C$ 386 difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • Which popular places can I visit in Lisbon?

    Some of the most popular sights in Lisbon are Chiado, Santa Justa Lift, and Praça do Marquês de Pombal. These are among the most viewed places in Lisbon on KAYAK.

  • How expensive are last-minute Seattle to Lisbon flights?

    Last-minute fares on this route – booked within 2 weeks of departure – run 0% above the route average of C$ 1,144. Book 19 weeks before departure for the lowest fares.

  • How long does a flight from Seattle to Lisbon take?

    A direct flight from Seattle to Lisbon takes 0h 00m, covering 13,464 km.

  • Do I need a passport to fly from Seattle to Lisbon?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How are flight prices from Seattle to Lisbon looking right now?

    One-way fares from Seattle to Lisbon are currently lower than usual. Average one-way flight prices are about C$ 580, which is 22% below the typical average for this route.

  • How much time can I save by choosing a different layover airport when travelling from Seattle to Lisbon?

    Flying via Paris Charles de Gaulle (CDG) gives the shortest average 1-stop total travel time at 14h 47m, compared with 15h 53m via London Heathrow (LHR) and 16h 06m via Amsterdam Schiphol (AMS).

  • What is the time difference between Seattle and Lisbon?

    Lisbon is 8 hours ahead of Seattle (Western European Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available at Lisbon Humberto Delgado Airport (LIS)?

    Lisbon Humberto Delgado Airport (LIS) hosts 5 major car rental companies, with daily rates starting from around C$ 2 for economy cars. Top options include:
    • Klass Wagen
    • Goldcar Rental SP
    • Drive on Holiday
    • GREEN MOTION
    • Guerin

  • How much should I expect to pay for a Seattle to Lisbon flight?

    Round-trip flights from Seattle to Lisbon range from C$ 835 to C$ 1,499, with an average of C$ 1,144 over the past 12 months. Anything below C$ 835 counts as a good deal.

Your guide to booking Seattle to Lisbon flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Saturday departure instead of Friday. On this route, Saturday flights average C$ 957 – about C$ 386 less than Friday (29% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 19 weeks before you fly. On this route, that window historically saves about 13% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Seattle to Lisbon trip for January. Fares historically average C$ 676 round-trip in that month – typically C$ 993 less than the most expensive month, which is June (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Lisbon Humberto Delgado Airport.
    - B&B Hotel Lisboa Aeroporto
    - Star inn Lisboa
    - Ibis Styles Lisboa Aeroporto
  • 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.

More options for your flight from Seattle to Lisbon

Complete your trip to Lisbon with a hotel stay or car rental

Car rentals in Lisbon
Hotels in Lisbon
Vacations in Lisbon