￥56,760 Cheap Flights from Seattle (SEA) to Lisbon (LIS)

View ￥56,760 flight on Sat, Oct 25, 2025Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Humberto Delgado Airport (LIS)

    notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
    deals illustration

    Book smarter

    Save up to 40% on select hotels after you book a flight*
    trophy illustration

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from Seattle to Lisbon (SEA-LIS)

Prices were available within the past 7 days and start at ￥56,760 for one-way flights and ￥96,010 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Tue, Apr 28 - Tue, May 5
SEA
Seattle
LIS
Lisbon
￥96,010 Roundtrip, found 6 days ago
￥96,010
Roundtrip
found 6 days ago
Select Air Canada flight, departing Tue, Apr 28 from Seattle to Lisbon, returning Tue, May 5, priced at ￥96,010 found 6 days ago
Air Canada
Tue, Apr 28 - Tue, May 5
SEA
Seattle
LIS
Lisbon
￥96,130 Roundtrip, found 6 days ago
￥96,130
Roundtrip
found 6 days ago
Select Air Canada flight, departing Tue, Apr 28 from Seattle to Lisbon, returning Tue, May 5, priced at ￥96,130 found 6 days ago
Turkish Airlines
Tue, Apr 28 - Tue, May 5
SEA
Seattle
LIS
Lisbon
￥107,790 Roundtrip, found 6 days ago
￥107,790
Roundtrip
found 6 days ago
Select Turkish Airlines flight, departing Tue, Apr 28 from Seattle to Lisbon, returning Tue, May 5, priced at ￥107,790 found 6 days ago
Turkish Airlines
Sat, Nov 22 - Sat, Nov 29
SEA
Seattle
LIS
Lisbon
￥162,300 Roundtrip, found 1 day ago
￥162,300
Roundtrip
found 1 day ago
Select Turkish Airlines flight, departing Sat, Nov 22 from Seattle to Lisbon, returning Sat, Nov 29, priced at ￥162,300 found 1 day ago
Turkish Airlines
Sat, Nov 22 - Sat, Nov 29
SEA
Seattle
LIS
Lisbon
￥172,600 Roundtrip, found 1 day ago
￥172,600
Roundtrip
found 1 day ago
Select Turkish Airlines flight, departing Sat, Nov 22 from Seattle to Lisbon, returning Sat, Nov 29, priced at ￥172,600 found 1 day ago
Lufthansa
Sat, Nov 22 - Sat, Nov 29
SEA
Seattle
LIS
Lisbon
￥175,450 Roundtrip, found 1 day ago
￥175,450
Roundtrip
found 1 day ago
Select Lufthansa flight, departing Sat, Nov 22 from Seattle to Lisbon, returning Sat, Nov 29, priced at ￥175,450 found 1 day ago

Find the cheapest month to fly from Seattle (SEA) to Lisbon (LIS)

February is typically the cheapest month to fly

From ￥71,462 - ￥163,804 per traveler.

Frequently asked questions

How much is a flight from Sea-Tac Airport to Lisbon/Portela Airport?
Round-trip flights from Sea-Tac Airport to LIS start from ￥96,010. This figure is based on fares advertised within the last 7 days on Expedia for flights departing within the next year — book today so you don't miss out. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Seattle - Tacoma Intl. Airport (SEA) to Lisbon Airport?
This can vary between air carriers, as each has its own set of terms and conditions. Visit the Customer Service Portal, where there are easy-to-follow instructions on how to cancel your flight online.
How do I find cheap flights from Sea-Tac Airport to Lisbon/Portela Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Sea-Tac Airport to Humberto Delgado Airport (LIS) flights, you'll see a "no change fees" filter for you to select.
How many hours is the flight from Sea-Tac Airport to Lisbon/Portela Airport?
The flight time from Seattle - Tacoma Intl. Airport (SEA) to Lisbon/Portela Airport is generally 13 hours and 10 minutes. It's is no quick joyride, so be sure to fill your hand luggage with plenty to keep you entertained.
How far is the flight from Seattle - Tacoma Intl. Airport (SEA) to LIS?
The distance is around 8,400 kilometers. Sleep mask? Check. A change of clothes? Double check. You'll need to pack all the essentials for this long-haul SeaTac to Lisbon District flight.
Which airlines fly direct from Sea-Tac Airport to LIS?
You won't find any airlines flying directly between SEA and Lisbon Airport, so be prepared to make at least one stop on your journey. A layover can be a good way to break up a trip!
Are Seattle - Tacoma Intl. Airport (SEA) to Lisbon Airport flight tickets cheaper when they're purchased at the last minute?
Last-minute bookings from SEA to LIS can be hit-or-miss. You may be able to score a great bargain, but you could also miss out entirely! If you'd rather start planning your trip early on, Expedia compares flight deals up to 12 months in advance. Just keep in mind that not all airlines publish their prices that far in advance. Our top tip? Check back often as updates are made frequently.

Travel information

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Humberto Delgado
Roundtrip price
￥96,010
Distance
8323 km

Book with confidence

Book with confidence

Seattle to Lisbon Flights

Sometimes you just need to get out of town or maybe you’re looking for a change of scenery. Regardless of the reason, a flight from Seattle to will do just the trick! Go on, plan to see all the famous landmarks and eat your weight in the local cuisine. Your trip is beckoning, so answer the call by packing your suitcase and filling your travel itinerary with exploring Lisbon.

Whether you’re flying for business or jet-setting on your personal time, you’ve come to the right place. Here at Expedia.com, we’ll pair you up with SEA to LIS flights that won’t make your bank account wince. Ready to temporarily leave behind Seattle for new horizons? Browse through our cheap airfare, and filter by flight times and dates until you find just what you had in mind. From flights without layovers to ones that arrive early in the morning, you’ll come across plane tickets that suit your travel preferences. You can even bundle your flight to LIS with hotels and car rentals to score even bigger savings.

All set to hit the clouds? Book your travel arrangements with us today and have left-over money to put toward your travel outings and adventures.

Seattle to Lisbon Flights

Explore a world of travel with Expedia

Explore a world of travel with Expedia

Seattle nearby Airports

Seattle Paine Field Intl. Airport

*Available to Expedia members.