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Cheap Flights from Seattle to Lisbon

Compare Seattle to Lisbon flight deals

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Flight deals from Seattle to Lisbon Airport

Looking for a cheap last-minute deal or the best return flight from Seattle to Lisbon Airport? If you want to travel next month, return fares start from $1,027. Find the lowest prices on one-way and return tickets right here.
Lisbon.$1,016 per passenger.Departing Thu, 12 Nov, returning Fri, 20 Nov.Return flight with United.Outbound indirect flight with United, departs from Seattle / Tacoma International on Thu, 12 Nov, arriving in Lisbon.Inbound indirect flight with United, departs from Lisbon on Fri, 20 Nov, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,016, select.
Lisbon.$1,024 per passenger.Departing Mon, 23 Nov, returning Thu, 3 Dec.Return flight with United.Outbound indirect flight with United, departs from Seattle / Tacoma International on Mon, 23 Nov, arriving in Lisbon.Inbound indirect flight with United, departs from Lisbon on Thu, 3 Dec, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,024, select.
Lisbon.$1,027 per passenger.Departing Sun, 12 Apr, returning Sat, 25 Apr.Return flight with Lufthansa.Outbound indirect flight with Lufthansa, departs from Seattle / Tacoma International on Sun, 12 Apr, arriving in Lisbon.Inbound indirect flight with Lufthansa, departs from Lisbon on Sat, 25 Apr, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,027, select.
Lisbon.$1,064 per passenger.Departing Mon, 23 Mar, returning Wed, 1 Apr.Return flight with Lufthansa.Outbound indirect flight with Lufthansa, departs from Seattle / Tacoma International on Mon, 23 Mar, arriving in Lisbon.Inbound indirect flight with Lufthansa, departs from Lisbon on Wed, 1 Apr, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,064, select.
Lisbon.$1,084 per passenger.Departing Sat, 26 Sep, returning Sat, 3 Oct.Return flight with Scandinavian Airlines and TAP Air Portugal.Outbound indirect flight with Scandinavian Airlines, departs from Seattle / Tacoma International on Sat, 26 Sep, arriving in Lisbon.Inbound indirect flight with TAP Air Portugal, departs from Lisbon on Sat, 3 Oct, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,084, select.
Lisbon.$1,088 per passenger.Departing Thu, 11 Feb, returning Fri, 19 Feb.Return flight with Lufthansa.Outbound indirect flight with Lufthansa, departs from Seattle / Tacoma International on Thu, 11 Feb, arriving in Lisbon.Inbound indirect flight with Lufthansa, departs from Lisbon on Fri, 19 Feb, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,088, select.
Lisbon.$1,126 per passenger.Departing Mon, 27 Apr, returning Mon, 4 May.Return flight with Delta.Outbound indirect flight with Delta, departs from Seattle / Tacoma International on Mon, 27 Apr, arriving in Lisbon.Inbound indirect flight with Delta, departs from Lisbon on Mon, 4 May, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,126, select.
Lisbon.$1,149 per passenger.Departing Mon, 4 May, returning Wed, 20 May.Return flight with Turkish Airlines.Outbound indirect flight with Turkish Airlines, departs from Seattle / Tacoma International on Mon, 4 May, arriving in Lisbon.Inbound indirect flight with Turkish Airlines, departs from Lisbon on Wed, 20 May, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,149, select.
Lisbon.$1,157 per passenger.Departing Wed, 19 Aug, returning Thu, 3 Sep.Return flight with Turkish Airlines.Outbound indirect flight with Turkish Airlines, departs from Seattle / Tacoma International on Wed, 19 Aug, arriving in Lisbon.Inbound indirect flight with Turkish Airlines, departs from Lisbon on Thu, 3 Sep, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,157, select.
Lisbon.$1,157 per passenger.Departing Wed, 9 Sep, returning Thu, 17 Sep.Return flight with Turkish Airlines.Outbound indirect flight with Turkish Airlines, departs from Seattle / Tacoma International on Wed, 9 Sep, arriving in Lisbon.Inbound indirect flight with Turkish Airlines, departs from Lisbon on Thu, 17 Sep, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,157, select.
Lisbon.$1,200 per passenger.Departing Sat, 22 Aug, returning Sat, 29 Aug.Return flight with Scandinavian Airlines.Outbound indirect flight with Scandinavian Airlines, departs from Seattle / Tacoma International on Sat, 22 Aug, arriving in Lisbon.Inbound indirect flight with Scandinavian Airlines, departs from Lisbon on Sat, 29 Aug, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,200, select.
Lisbon.$1,217 per passenger.Departing Sun, 18 Oct, returning Mon, 2 Nov.Return flight with Turkish Airlines.Outbound indirect flight with Turkish Airlines, departs from Seattle / Tacoma International on Sun, 18 Oct, arriving in Lisbon.Inbound indirect flight with Turkish Airlines, departs from Lisbon on Mon, 2 Nov, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,217, select.
Lisbon.$1,235 per passenger.Departing Tue, 13 Oct, returning Thu, 22 Oct.Return flight with Finnair.Outbound indirect flight with Finnair, departs from Seattle / Tacoma International on Tue, 13 Oct, arriving in Lisbon.Inbound indirect flight with Finnair, departs from Lisbon on Thu, 22 Oct, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,235, select.
Lisbon.$1,245 per passenger.Departing Wed, 2 Dec, returning Sat, 12 Dec.Return flight with United.Outbound indirect flight with United, departs from Seattle / Tacoma International on Wed, 2 Dec, arriving in Lisbon.Inbound indirect flight with United, departs from Lisbon on Sat, 12 Dec, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,245, select.
Lisbon.$1,279 per passenger.Departing Wed, 18 Mar, returning Wed, 25 Mar.Return flight with Delta.Outbound indirect flight with Delta, departs from Seattle / Tacoma International on Wed, 18 Mar, arriving in Lisbon.Inbound indirect flight with Delta, departs from Lisbon on Wed, 25 Mar, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,279, select.
Lisbon.$1,335 per passenger.Departing Tue, 24 Mar, returning Sat, 27 Jun.Return flight with Turkish Airlines.Outbound indirect flight with Turkish Airlines, departs from Seattle / Tacoma International on Tue, 24 Mar, arriving in Lisbon.Inbound indirect flight with Turkish Airlines, departs from Lisbon on Sat, 27 Jun, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,335, select.

Find the cheapest month to fly from Seattle to Lisbon

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Seattle to Lisbon flights are currently cheapest in November.
Mar
from $1,279
Apr
from $1,027
May
from $1,149
Jun
from $1,698
Jul
from $1,523
Aug
from $1,200
Sep
from $1,157
Oct
from $1,235
Nov
from $1,016
Dec
from $1,245
Jan
Find prices
Feb
from $1,088

Seattle to Lisbon: Alternative routes

Compare routes from Seattle 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 $1,016
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Cascais Municipal Aerodrome

19km from central Lisbon
Search flights

Seattle to Lisbon: Flight information

The things to know before you go.
Cheapest flight found$1,016
Cheapest month to flyNovember

Check out these Lisbon hotels

Ready to plan your stay? Other travellers rate these Lisbon hotels for cleanliness, service and location.
Casa Teva Lisboa Boutique Hotel by chic&basic
0.74 km from city centre
$430
Per night
1904 Benfica Hotel FLH Hotels
1.05 km from city centre
$386
Per night
Pestana Rua Augusta Lisboa
0.23 km from city centre
$514
Per night
Casa Teva Lisboa Boutique Hotel by chic&basic
0.74 km from city centre
$430
Per night
1904 Benfica Hotel FLH Hotels
1.05 km from city centre
$386
Per night
Pestana Rua Augusta Lisboa
0.23 km from city centre
$514
Per night
Explore top-rated hotels

Finding cheap flights from Seattle to Lisbon: Frequently asked questions

The best price we found for a return flight from Seattle to Lisbon is $1,016. 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 to Lisbon. But we found flights with one stop from $1,016.
As of March 2026, there are no flights flying from Seattle to Lisbon.
The cheapest month to fly from Seattle to Lisbon is usually November.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Seattle to Lisbon Airport on Thursday, 12 November 2026.
No airlines currently offer direct flights between Seattle 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.
The cheapest airline that flies to Lisbon is United .

Travelling from Seattle to Lisbon Humberto Delgado Airport (LIS): What you need to know

  • The timezone in Lisbon is UTC+0, which is eight hours ahead of Seattle. Lisbon Humberto Delgado Airport is located in Lisbon.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are golden rules for stress-free travel. Be at the airport with enough time to board your flight from Seattle to LIS.

  • If you're getting away during a popular month like July, head to the airport even earlier. It's smart to arrive up to four hours before international flights and two hours ahead of a domestic departure. Expect lines to be longer during peak periods like Thanksgiving, Christmas and New Year.

Airports in Seattle

Seattle-Tacoma International Airport (SEA)

  • Consider adding a stopover to find cheap flights from Seattle to LIS. Just uncheck 'Direct flights only' when browsing departures from Seattle-Tacoma International Airport (SEA). Break up the journey at one of these popular options:

    • London Heathrow Airport (LHR)

    • Paris Charles de Gaulle Airport (CDG)

    • Washington Dulles International Airport (IAD)

  • Located around 23 kilometres from the centre of Seattle, SEA can be reached in about 25 minutes by car, depending on traffic. The journey on public transport will take roughly 35 minutes.

  • Catching an early flight from Seattle to Lisbon Humberto Delgado Airport? Avoid rushing to the terminal (and sneak in some bonus sleep) by staying at one of these hotels close to Seattle-Tacoma International Airport:

  • 80% of flights leaving Seattle-Tacoma International Airport land at their destination on time. With its strong on-time performance, you're unlikely to experience delays when jetting out of SEA.

Seattle Paine Field International Airport (PAE)

  • You can reach PAE from the centre of Seattle in approximately 40 minutes by car, depending on traffic conditions. The ride by public transport takes roughly 1 hour 30 minutes to travel the 40 kilometres or so.

  • Flying out early in the morning? Think about checking in to one of these accommodation options near Seattle Paine Field International Airport the day before your Seattle to LIS flight:

  • Flights from Seattle Paine Field International Airport have a reputation for punctuality, with 80% of them touching down as expected.

About Lisbon Humberto Delgado Airport (LIS)

Getting from Lisbon Humberto Delgado Airport (LIS) to central Lisbon

  • The centre of Lisbon is about 6 kilometres from Lisbon Humberto Delgado Airport. Journey times by car hire or taxi will vary depending on traffic conditions and time of day, so do some research ahead of time.

  • If you're taking public transport, expect a journey of about 25 minutes.

How to find the cheapest flights from Seattle to Lisbon Humberto Delgado Airport (LIS)

  • The cheapest price we've found for a one-way ticket from Seattle to Lisbon Humberto Delgado Airport is $524. For a return flight on this route, the best price is $1,016. Depending on when you want to go and the availability, these fares can change.

  • Booking ahead of time is often the key to scoring a cheap flight from Seattle to LIS. Fares tend to rise as seats fill up, so the closer your departure date, the more you'll likely spend on your ticket.

  • The 'Whole month' tool will show you the cheapest Seattle to Lisbon Humberto Delgado Airport tickets across each month. It's a great way to snap up a bargain if your plans aren't set in stone.

  • Never miss a deal on plane tickets from Seattle to LIS by creating a Price Alert. We'll send you an email or notification through the app when a lower fare pops up.

  • Bag the best deal on a flight from Seattle to Lisbon Humberto Delgado Airport with the help of the filters. Choose your ideal departure and arrival times, airlines and number of stops. You can also sort your results by 'Cheapest,' 'Best' or 'Fastest.'

The best time to fly from Seattle to Lisbon Humberto Delgado Airport (LIS)

  • August is when most people book flights from Seattle to Lisbon Humberto Delgado Airport (LIS). Visit Lisbon in January if you'd rather be there when it's quieter.

  • Book a Seattle to LIS plane ticket departing in August if you want to visit the city during its warmest month. Expect temperatures in Lisbon to range from 16ºC to 29ºC.

  • If you want cooler conditions, look for a cheap ticket from Seattle to Lisbon Humberto Delgado Airport in January when temperatures are between 8ºC and 16ºC.

More about Lisbon

  • When it comes to searching for somewhere to lay your head, you'll find the best stays in Lisbon right here. Check out these hotels once you've locked in your flight from Seattle to Lisbon Humberto Delgado Airport:

  • You'll find plenty of terrific things to do in Lisbon when you're ready to go sightseeing. Make your way to Pasteis de Belém followed by belém and Real Mosteiro de Santa Maria de Belém.

Explore more of Portugal

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

  • If you're eager to discover another great destination in Portugal, head for Coimbra, roughly 177 kilometres north of Lisbon. Biblioteca Joanina, Old Cathedral of Coimbra (Se Velha de Coimbra) and Paço das Escolas are key highlights.

More travel options

Plan the rest of your trip from Seattle to Lisbon

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.