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507 € Cheap Flights from Seattle / Tacoma International to Lisbon

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      Travellers and cabin class, 1 Adult, Economy

      Compare Seattle / Tacoma International to Lisbon flight deals

      Find the cheapest month or even day of the year to fly to Lisbon

      Book the best Lisbon fare with no extra fees

      Flight deals from Seattle / Tacoma International to Lisbon

      Looking for a cheap last-minute deal or the best return flight from Seattle / Tacoma International Airport to Lisbon Airport? If you want to travel next month, return fares start from 580 €. Find the lowest prices on one-way and return tickets right here.
      Lisbon.507 € per passenger.Departing Wed, 9 Dec, returning Tue, 15 Dec.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Seattle / Tacoma International on Wed, 9 Dec, arriving in Lisbon.Inbound indirect flight with Icelandair, departs from Lisbon on Tue, 15 Dec, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 507 €, select.
      Lisbon.515 € per passenger.Departing Sat, 28 Nov, returning Sun, 6 Dec.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Seattle / Tacoma International on Sat, 28 Nov, arriving in Lisbon.Inbound indirect flight with Icelandair, departs from Lisbon on Sun, 6 Dec, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 515 €, select.
      Lisbon.515 € per passenger.Departing Mon, 2 Nov, returning Tue, 17 Nov.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Seattle / Tacoma International on Mon, 2 Nov, arriving in Lisbon.Inbound indirect flight with Air Canada, departs from Lisbon on Tue, 17 Nov, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 515 €, select.
      Lisbon.520 € per passenger.Departing Tue, 23 Feb, returning Tue, 2 Mar.Return flight with Finnair.Outbound indirect flight with Finnair, departs from Seattle / Tacoma International on Tue, 23 Feb, arriving in Lisbon.Inbound indirect flight with Finnair, departs from Lisbon on Tue, 2 Mar, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 520 €, select.
      Lisbon.520 € per passenger.Departing Tue, 9 Feb, returning Tue, 16 Feb.Return flight with Finnair.Outbound indirect flight with Finnair, departs from Seattle / Tacoma International on Tue, 9 Feb, arriving in Lisbon.Inbound indirect flight with Finnair, departs from Lisbon on Tue, 16 Feb, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 520 €, select.
      Lisbon.520 € per passenger.Departing Tue, 19 Jan, returning Tue, 26 Jan.Return flight with Finnair.Outbound indirect flight with Finnair, departs from Seattle / Tacoma International on Tue, 19 Jan, arriving in Lisbon.Inbound indirect flight with Finnair, departs from Lisbon on Tue, 26 Jan, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 520 €, select.
      Lisbon.522 € per passenger.Departing Mon, 26 Oct, returning Wed, 11 Nov.Return flight with Air France.Outbound indirect flight with Air France, departs from Seattle / Tacoma International on Mon, 26 Oct, arriving in Lisbon.Inbound indirect flight with Air France, departs from Lisbon on Wed, 11 Nov, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 522 €, select.
      Lisbon.527 € per passenger.Departing Wed, 3 Mar, returning Wed, 10 Mar.Return flight with British Airways and Iberia.Outbound indirect flight with British Airways, departs from Seattle / Tacoma International on Wed, 3 Mar, arriving in Lisbon.Inbound indirect flight with Iberia, departs from Lisbon on Wed, 10 Mar, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 527 €, select.
      Lisbon.528 € per passenger.Departing Tue, 26 Jan, returning Tue, 2 Feb.Return flight with British Airways and Iberia.Outbound indirect flight with British Airways, departs from Seattle / Tacoma International on Tue, 26 Jan, arriving in Lisbon.Inbound indirect flight with Iberia, departs from Lisbon on Tue, 2 Feb, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 528 €, select.
      Lisbon.534 € per passenger.Departing Sun, 13 Dec, returning Wed, 13 Jan.Return flight with British Airways and Iberia.Outbound indirect flight with British Airways, departs from Seattle / Tacoma International on Sun, 13 Dec, arriving in Lisbon.Inbound indirect flight with Iberia, departs from Lisbon on Wed, 13 Jan, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 534 €, select.
      Lisbon.540 € per passenger.Departing Tue, 13 Apr, returning Tue, 27 Apr.Return flight with British Airways.Outbound indirect flight with British Airways, departs from Seattle / Tacoma International on Tue, 13 Apr, arriving in Lisbon.Inbound indirect flight with British Airways, departs from Lisbon on Tue, 27 Apr, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 540 €, select.
      Lisbon.547 € per passenger.Departing Tue, 27 Apr, returning Tue, 4 May.Return flight with Finnair and British Airways.Outbound indirect flight with Finnair, departs from Seattle / Tacoma International on Tue, 27 Apr, arriving in Lisbon.Inbound indirect flight with British Airways, departs from Lisbon on Tue, 4 May, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 547 €, select.
      Lisbon.565 € per passenger.Departing Tue, 6 Oct, returning Tue, 8 Dec.Return flight with British Airways.Outbound indirect flight with British Airways, departs from Seattle / Tacoma International on Tue, 6 Oct, arriving in Lisbon.Inbound indirect flight with British Airways, departs from Lisbon on Tue, 8 Dec, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 565 €, select.
      Lisbon.580 € per passenger.Departing Tue, 13 Oct, returning Tue, 20 Oct.Return flight with British Airways.Outbound indirect flight with British Airways, departs from Seattle / Tacoma International on Tue, 13 Oct, arriving in Lisbon.Inbound indirect flight with British Airways, departs from Lisbon on Tue, 20 Oct, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 580 €, select.
      Lisbon.581 € per passenger.Departing Sun, 2 May, returning Sun, 9 May.Return flight with Delta.Outbound indirect flight with Delta, departs from Seattle / Tacoma International on Sun, 2 May, arriving in Lisbon.Inbound indirect flight with Delta, departs from Lisbon on Sun, 9 May, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 581 €, select.
      Lisbon.614 € per passenger.Departing Mon, 28 Sep, returning Mon, 5 Oct.Return flight with British Airways.Outbound indirect flight with British Airways, departs from Seattle / Tacoma International on Mon, 28 Sep, arriving in Lisbon.Inbound indirect flight with British Airways, departs from Lisbon on Mon, 5 Oct, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 614 €, select.
      How did we find these deals? The deals you see here are the lowest prices for flight tickets from Seattle / Tacoma International to Lisbon found in the last 4 days, and are subject to change and availability.

      Find the cheapest month to fly from Seattle / Tacoma International to Lisbon

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Seattle / Tacoma International to Lisbon flights are currently cheapest in December.
      Sep
      from 680 €
      Oct
      from 580 €
      Nov
      from 515 €
      Dec
      from 507 €
      Jan
      from 520 €
      Feb
      from 520 €
      Mar
      from 527 €
      Apr
      from 540 €
      May
      from 581 €
      Jun
      from 969 €
      Jul
      from 922 €
      Aug
      from 986 €

      Seattle / Tacoma International to Lisbon: Alternative routes

      Compare routes from Seattle / Tacoma International to Lisbon below. You may find an airport to fly into that's cheaper, faster, or easier than Lisbon.

      Lisbon

      8km from central Lisbon
      ClosestCheapest
      from 507 €
      Search flights

      Cascais Municipal Aerodrome

      19km from central Lisbon
      Search flights

      Seattle to Lisbon: Flight information

      The things to know before you go.
      Cheapest flight found507 €
      Cheapest month to flyDecember

      Finding cheap flights from Seattle / Tacoma International to Lisbon: Frequently asked questions

      The best price we found for a return flight from Seattle / Tacoma International to Lisbon is 507 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
      Currently, there are no airlines that fly direct from Seattle / Tacoma International to Lisbon. But we found flights with one or more stops from 507 €.
      As of September 2026, there are no flights flying from Seattle / Tacoma International to Lisbon.
      The cheapest month to fly from Seattle / Tacoma International to Lisbon is usually December.
      After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Seattle / Tacoma International Airport to Lisbon Airport on Wednesday, 9 December 2026.
      No airlines currently offer direct flights between Seattle / Tacoma International Airport and Lisbon Airport. Most routes have one or more stops.
      We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Lisbon but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

      We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Lisbon is around 40 days in advance, so don’t leave your flight to the last minute.

      Currently, Icelandair offers the cheapest flight tickets to Lisbon.

      Travelling from Seattle / Tacoma International Airport (SEA) to Lisbon Airport (LIS): what you need to know

      • Lisbon's timezone is UTC+0, which makes Lisbon eight hours ahead of Seattle.

      • Give yourself plenty of time to make your SEA to LIS flight. As a rule of thumb, arrive two hours before international departures and an hour ahead for domestic flights.

      • You can expect longer lines in popular months like July. Arriving up to four hours in advance for international flights and two hours for domestic departures is a smart move.

      • If you'd like to add a stop to your trip, just deselect 'Direct flights only' when searching for your ticket from Seattle / Tacoma International Airport to Lisbon Airport. These are the most popular stopovers between SEA and LIS:

        • London Heathrow Airport

        • Paris Charles de Gaulle Airport

        • Washington Dulles Airport

      How to find the cheapest flights from Seattle / Tacoma International Airport (SEA) to Lisbon Airport (LIS)

      • Currently, 263 € is the cheapest price we've seen for a one-way Seattle / Tacoma International Airport to Lisbon Airport flight. The best price for a return ticket is 507 €. Keep in mind that fares can change due to demand when booking.

      • To find cheap tickets from SEA to LIS, book as early as you can. Airlines typically offer lower fares when flights are first made available.

      • The 'Whole month' search tool shows you the cheapest flights from Seattle / Tacoma International Airport to Lisbon Airport throughout the entire month. It's a great way to snap up a bargain if your trip dates aren't set in stone.

      • Landing cheap flights from SEA to LIS is a piece of cake with Price Alerts. Simply set up one of these automatic alerts and we'll get in touch as soon as a new discounted fare appears.

      • Discover the ideal flight for you with the help of the filters. To see the 'Cheapest,' 'Fastest' or 'Best' flights from Seattle / Tacoma International Airport to Lisbon Airport, use the 'Sort by' tool. You can also filter results by airline, arrival and departure times, and number of stops.

      Handy information about Seattle / Tacoma International Airport (SEA)

      • Seattle / Tacoma International Airport scores top marks for its on-time performance. 80% of flights that depart SEA reach their destination on time.

      • Seattle / Tacoma International Airport is around 23 kilometres from central Seattle. If you're driving, catching a taxi or ride-sharing from the centre, it'll take 25 minutes or so to arrive, depending on the traffic.

      • Catching public transport? Expect a trip time of around 35 minutes.

      • Taking an early flight from Seattle / Tacoma International Airport to Lisbon Airport? Avoid rushing to the terminal (and sneak in some extra precious sleep) by picking one of these hotels close to SEA:

      Arriving at Lisbon Airport (LIS)

      • The last thing you want is a lengthy trip to your hotel if you're landing late on a Seattle / Tacoma International Airport to Lisbon Airport flight. Check in to one of these accommodation options near LIS instead:

      • Fast-track your adventure by picking up a Lisbon Airport rental car. Grab your wheels from Klass Wagen, Goldcar or OK Mobility to explore Lisbon and beyond.

      • For the lowest price, book your vehicle from Lisbon Airport about two weeks in advance.

      Getting from Lisbon Airport (LIS) to central Lisbon

      • Lisbon Airport to the centre of Lisbon has a drive time of around 20 minutes. It's approximately 8 kilometres away.

      • It'll take around 25 minutes to get there by public transport.

      When to fly to Lisbon Airport (LIS)

      • August is the busiest month for flights from Seattle / Tacoma International Airport to Lisbon Airport. To steer clear of the crowds, visit Lisbon in March.

      • When booking your flight from Seattle / Tacoma International Airport to Lisbon Airport, consider the kind of weather you like. August is the warmest month in Lisbon, with temperatures ranging from 16ºC (61ºF) to 29ºC (84ºF).

      • If you want cooler conditions, look for a cheap ticket from SEA to LIS in January. Average temperatures are between 8ºC (46ºF) and 16ºC (61ºF) then.

      Explore more of Portugal

      • Porto is just one of the many places in Portugal waiting to be explored once you've taken in the sights of Lisbon. Around 274 kilometres away to the north, its top attractions include Ribeira District, Rio Douro and Livraria Lello.

      • If you're ready to explore another major destination in Portugal, consider Amadora, about 8 kilometres north-west of Lisbon. Roman Villa, Park Fantasia and Palácio dos Condes da Lousã are among the biggest draws.

      Plan the rest of your trip from Seattle to Lisbon

      Prices shown on this page are estimated lowest prices only. Found in the last 12 days.