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CA $330 Cheap Flights from Seattle (SEA) to Lisbon (LIS)

View CA $330 flight on Wed, Feb 24, 2027Opens in a new window

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

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Cheap flights from Seattle (SEA) to Lisbon (LIS)

Prices were available within the past 7 days and start at CA $330 for one-way flights and CA $987 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Wed, Oct 21 - Thu, Oct 29
SEA
Seattle
LIS
Lisbon
CA $987 Roundtrip, found 18 hours ago
CA $987
Roundtrip
found 18 hours ago
Select Alaska Airlines flight, departing Wed, Oct 21 from Seattle to Lisbon, returning Thu, Oct 29, priced at CA $987 found 18 hours ago
United
Tue, Dec 1 - Wed, Dec 23
SEA
Seattle
LIS
Lisbon
CA $1,030 Roundtrip, found 2 days ago
CA $1,030
Roundtrip
found 2 days ago
Select United flight, departing Tue, Dec 1 from Seattle to Lisbon, returning Wed, Dec 23, priced at CA $1,030 found 2 days ago
Delta
Tue, Dec 1 - Thu, Feb 4
SEA
Seattle
LIS
Lisbon
CA $1,033 Roundtrip, found 2 days ago
CA $1,033
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Dec 1 from Seattle to Lisbon, returning Thu, Feb 4, priced at CA $1,033 found 2 days ago
KLM
Mon, Nov 2 - Wed, Nov 25
SEA
Seattle
LIS
Lisbon
CA $1,033 Roundtrip, found 2 days ago
CA $1,033
Roundtrip
found 2 days ago
Select KLM flight, departing Mon, Nov 2 from Seattle to Lisbon, returning Wed, Nov 25, priced at CA $1,033 found 2 days ago
Air Canada
Mon, Nov 2 - Wed, Nov 25
SEA
Seattle
LIS
Lisbon
CA $1,035 Roundtrip, found 2 days ago
CA $1,035
Roundtrip
found 2 days ago
Select Air Canada flight, departing Mon, Nov 2 from Seattle to Lisbon, returning Wed, Nov 25, priced at CA $1,035 found 2 days ago
Air France
Tue, Dec 1 - Wed, Dec 23
SEA
Seattle
LIS
Lisbon
CA $1,042 Roundtrip, found 2 days ago
CA $1,042
Roundtrip
found 2 days ago
Select Air France flight, departing Tue, Dec 1 from Seattle to Lisbon, returning Wed, Dec 23, priced at CA $1,042 found 2 days ago
American Airlines
Mon, Nov 2 - Wed, Nov 25
SEA
Seattle
LIS
Lisbon
CA $1,051 Roundtrip, found 2 days ago
CA $1,051
Roundtrip
found 2 days ago
Select American Airlines flight, departing Mon, Nov 2 from Seattle to Lisbon, returning Wed, Nov 25, priced at CA $1,051 found 2 days ago
British Airways
Mon, Nov 2 - Wed, Nov 25
SEA
Seattle
LIS
Lisbon
CA $1,052 Roundtrip, found 2 days ago
CA $1,052
Roundtrip
found 2 days ago
Select British Airways flight, departing Mon, Nov 2 from Seattle to Lisbon, returning Wed, Nov 25, priced at CA $1,052 found 2 days ago
Virgin Atlantic
Tue, Dec 1 - Wed, Dec 23
SEA
Seattle
LIS
Lisbon
CA $1,056 Roundtrip, found 2 days ago
CA $1,056
Roundtrip
found 2 days ago
Select Virgin Atlantic flight, departing Tue, Dec 1 from Seattle to Lisbon, returning Wed, Dec 23, priced at CA $1,056 found 2 days ago
Iberia
Tue, Oct 27 - Thu, Nov 5
SEA
Seattle
LIS
Lisbon
CA $1,056 Roundtrip, found 2 days ago
CA $1,056
Roundtrip
found 2 days ago
Select Iberia flight, departing Tue, Oct 27 from Seattle to Lisbon, returning Thu, Nov 5, priced at CA $1,056 found 2 days ago

Alternative airports near Lisbon

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Humberto Delgado LIS. Cheapest option available. Flights from CA $1,617
LIS
Humberto Delgado
Cheapest
Flights from CA $1,617

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

November is typically the cheapest month to fly

From CA $900 - CA $1,689 per traveller.

Frequently asked questions

How much does a flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Lisbon (LIS-Humberto Delgado) cost?
You can find cheap one-way flights from CA $330 and cheap return flights from CA $987 SEA to LIS with Expedia. One-way flights typically cost between CA$715 and CA$4845, and return flights often range between CA$1165 and CA$7642. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when SEA to LIS ticket fares go up or down.
What is the cheapest month to fly from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Lisbon (LIS-Humberto Delgado)?
The cheapest months to fly from SEA to LIS are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Seattle, WA (SEA) to Lisbon (LIS)?
Enter SEA to LIS and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
How do I find cheap flights from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Lisbon (LIS-Humberto Delgado)?
To find a cheap flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Lisbon (LIS-Humberto Delgado), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Lisbon (LIS-Humberto Delgado)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Lisbon (LIS-Humberto Delgado)?
There are approximately 95 connecting flights per day from Seattle - Tacoma Intl. (SEA) to Humberto Delgado (LIS). Some common connection points include O'Hare Intl. (ORD), Vancouver Intl. (YVR), and Logan Intl. (BOS).
What is the earliest flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Lisbon (LIS-Humberto Delgado)?
The earliest flight from Seattle - Tacoma Intl. (SEA) to Humberto Delgado (LIS) typically departs around 12:05 AM local time, operated by American Airlines. This is a seasonal service active in February. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Lisbon (LIS-Humberto Delgado)?
You'll generally find the most flights from Seattle - Tacoma Intl. (SEA) to Lisbon (LIS) on a Thursday, with around 93 flights available. This gives you a good selection of options for your travel plans. Major airlines on this route include Delta, American Airlines, and United. Looking at the week as a whole, Thursdays offer notably more flight options compared to other days.
What are the most popular departure times for flights from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Lisbon (LIS-Humberto Delgado)?
The most popular departure times for flights from Seattle - Tacoma Intl. (SEA) to Lisbon (LIS) are in the afternoon, from 12pm to 3pm. Many major carriers, including British Airways, Lufthansa and American Airlines, offer flights during this window. This timing works well because it allows you to have a relaxed morning before heading to the airport, and you'll arrive in Lisbon with plenty of time to settle in.
How long does it take to fly from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Lisbon (LIS-Humberto Delgado)?
A flight from SEA to LIS with a layover takes around 16 hours 50 minutes, with the route covering approximately 8,373 kilometers. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Lisbon (LIS-Humberto Delgado)?
You can fly business class or first class between SEA and LIS. Airlines that offer business class service on this route include:
  • Lufthansa
  • Air France
  • British Airways
  • Alaska Airlines
  • Air Canada
  • Turkish Airlines
  • SAS
  • Edelweiss Air
  • Icelandair
  • Skywest Air
  • United
  • Virgin Atlantic
  • Delta
  • Aer Lingus
  • Finnair
  • Horizon Air
  • Condor
  • American Airlines
First class cabins are available on United.
How do I earn miles on a Seattle, WA (SEA) to Lisbon (LIS) flight with Expedia?
It's easy to earn miles on a Seattle, WA (SEA) to Lisbon (LIS) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Lisbon (LIS) from Seattle, WA (SEA)?
If you're planning to travel to Lisbon from Seattle - Tacoma Intl. (SEA), you can fly directly into Humberto Delgado (LIS) which offers international flights and connections. Some flights may connect through major hubs like O'Hare Intl. (ORD), Dallas-Fort Worth Intl. (DFW), or Vancouver Intl. (YVR) before reaching Lisbon. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Seattle, WA (SEA) to Lisbon (LIS) at the last minute?
Typically, booking a last minute flight from Seattle, WA (SEA) to Lisbon (LIS) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Seattle, WA (SEA) to Lisbon (LIS) flight and hotel package?
Securing a Seattle, WA (SEA) to Lisbon (LIS) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Lisbon (LIS-Humberto Delgado)?
If you booked your Seattle, WA (SEA-Seattle - Tacoma Intl.) to Lisbon (LIS-Humberto Delgado) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Humberto Delgado
Airlines serving
Aer Lingus, Air Canada, Air Europa, Air France, Alaska Airlines, American Airlines, British Airways, Delta, Finnair, Iberia, Icelandair, JetBlue Airways, KLM, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, TAP Portugal, Turkish Airlines, United, Virgin Atlantic
Roundtrip price
CA $987
Distance
8323 km

Book with confidence

Seattle to Lisbon District Flights

The easy way to book your flights from Seattle to Lisbon 

With Expedia, it’s simple to find and book flights to Lisbon from Seattle whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Humberto Delgado, too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Seattle to Lisbon today, tomorrow, or this week.  

 

Save dollars with cheap flights from Seattle - Tacoma Intl., SEA to Humberto Delgado, LIS 

Sort your search results by price to find great deals on your flight from Seattle to Lisbon—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Lisbon from Seattle currently is just CA $987 rising to CA $1,056.  

Here are more money-saving tips: 

  • Fly in October when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Lisbon  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Lisbon from Seattle 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Lisbon with Expedia today.

Seattle to Lisbon District Flights

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