$466 Cheap flights from Seattle - Tacoma Intl. to Humberto Delgado (SEA to LIS)

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Find The Best Dates To Fly from Seattle - Tacoma Intl. to Humberto Delgado

Amazing SEA to LIS Flight Deals

The cheapest flights to Humberto Delgado found within the past 7 days were $639 round trip and $466 one way. Prices and availability subject to change. Additional terms may apply.

Tue, Nov 26 - Tue, Dec 3
SEA
Seattle
LIS
Lisbon
$639 Roundtrip, found 2 days ago
$639
Roundtrip
found 2 days ago
Select Air Canada flight, departing Tue, Nov 26 from Seattle to Lisbon, returning Tue, Dec 3, priced at $639 found 2 days ago
Tue, Nov 26 - Tue, Dec 3
SEA
Seattle
LIS
Lisbon
$641 Roundtrip, found 2 days ago
$641
Roundtrip
found 2 days ago
Select Air Canada flight, departing Tue, Nov 26 from Seattle to Lisbon, returning Tue, Dec 3, priced at $641 found 2 days ago
Tue, Feb 25 - Tue, Mar 11
SEA
Seattle
LIS
Lisbon
$649 Roundtrip, found 1 hour ago
$649
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Tue, Feb 25 from Seattle to Lisbon, returning Tue, Mar 11, priced at $649 found 1 hour ago
Tue, Feb 4 - Tue, Feb 25
SEA
Seattle
LIS
Lisbon
$649 Roundtrip, found 9 hours ago
$649
Roundtrip
found 9 hours ago
Select British Airways flight, departing Tue, Feb 4 from Seattle to Lisbon, returning Tue, Feb 25, priced at $649 found 9 hours ago
Tue, Feb 25 - Tue, Mar 11
SEA
Seattle
LIS
Lisbon
$656 Roundtrip, found 1 hour ago
$656
Roundtrip
found 1 hour ago
Select Virgin Atlantic flight, departing Tue, Feb 25 from Seattle to Lisbon, returning Tue, Mar 11, priced at $656 found 1 hour ago
Tue, Feb 25 - Tue, Mar 11
SEA
Seattle
LIS
Lisbon
$656 Roundtrip, found 1 hour ago
$656
Roundtrip
found 1 hour ago
Select Delta flight, departing Tue, Feb 25 from Seattle to Lisbon, returning Tue, Mar 11, priced at $656 found 1 hour ago
Wed, Jan 15 - Thu, Jan 23
SEA
Seattle
LIS
Lisbon
$662 Roundtrip, found 7 hours ago
$662
Roundtrip
found 7 hours ago
Select Iberia flight, departing Wed, Jan 15 from Seattle to Lisbon, returning Thu, Jan 23, priced at $662 found 7 hours ago
Tue, Nov 5 - Wed, Nov 13
SEA
Seattle
LIS
Lisbon
$663 Roundtrip, found 3 hours ago
$663
Roundtrip
found 3 hours ago
Select Lufthansa flight, departing Tue, Nov 5 from Seattle to Lisbon, returning Wed, Nov 13, priced at $663 found 3 hours ago
Mon, Apr 22 - Thu, May 9
SEA
Seattle
LIS
Lisbon
$676 Roundtrip, found 1 day ago
$676
Roundtrip
found 1 day ago
Select United flight, departing Mon, Apr 22 from Seattle to Lisbon, returning Thu, May 9, priced at $676 found 1 day ago
Tue, Feb 25 - Tue, Mar 11
SEA
Seattle
LIS
Lisbon
$714 Roundtrip, found 1 hour ago
$714
Roundtrip
found 1 hour ago
Select Air France flight, departing Tue, Feb 25 from Seattle to Lisbon, returning Tue, Mar 11, priced at $714 found 1 hour ago

Frequently asked questions

Can I catch a flight from SEA to Humberto Delgado Airport (LIS) right now?
Ensure you check out our Covid-19 Travel Advisor to learn if there are any current travel advice reports or quarantine requirements in effect in Lisbon/Portela Airport when flying in from Sea-Tac Airport.
Are there direct flights from Seattle - Tacoma Intl. Airport (SEA) to Humberto Delgado Airport (LIS)?
Virgin Atlantic, Delta and British Airways will take you to Lisbon District from Seattle with one stopover. Unfortunately, there are no direct flights between SEA and Lisbon Airport as yet.
If I am not able to travel due to COVID-19, can I change my booking to a later date?
For more info about changing your flight to Humberto Delgado Airport (LIS), please visit our Customer Service Portal.
How long is the flight from Seattle - Tacoma Intl. Airport (SEA) to Lisbon Airport?
Taking around 13 hours and 27 minutes in total, traveling from Seattle to Lisbon District is no walk in the park. On such a long journey, it’s a smart idea to get up and stretch your legs often.
What is the flight distance from Seattle - Tacoma Intl. Airport (SEA) to Lisbon/Portela Airport?
With 5,200 mi separating SEA and Humberto Delgado Airport (LIS), you’ll have time to kick back and relax. Enjoy the entertainment on board, tackle a crossword or have a snooze.
What airlines fly from Seattle - Tacoma Intl. Airport (SEA) to LIS?
When traveling from Seattle - Tacoma Intl. Airport (SEA) to LIS, you’ll need to plan ahead — no direct flights are currently available. Booking early should help you find the most convenient route and price.
What airlines have practices regarding COVID-19 in place and use social distancing?
From the moment you enter the departure terminal to when you leave the arrivals terminal, if you’re flying with TAP Air Portugal, Ryanair or EasyJet you can be sure that COVID-19 measures and social distancing rules have been adhered to. Many airlines have introduced capped capacity flights and keeping the middle seat empty.
What is the best day to buy a plane ticket?
This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.
What are the cheapest days to fly?
Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.
How far in advance can you book a flight?
Trying to figure out how early you should book your flight? It’s possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

 

Traveling From
Seattle - Tacoma Intl.
Traveling To
Humberto Delgado
Shortest Flight Time
 hours mins
Earliest Departure Time
Latest Departure Time
Lowest Flight Price
$639

Route Info

Flight path for flights from Seattle-Tacoma International Airport to Lisbon Portela Airport


Origin:
SEA - Seattle-Tacoma International Airport
Destination:
LIS - Lisbon Portela Airport
Distance:
5,853.00 miles


Airlines & Aircraft Used on SEA to LIS Flight Routes


Airline Carrier
Aircraft
American Airlines
Boeing 777-300ER

Discover our best flights from Seattle SEA to Lisbon LIS. 

With 20 airlines to choose from on Travelocity, you can easily find the best option for you. Use our filters to sort by price, compare airlines, and find the most convenient flight times. 

 

Find our best return flights from Seattle SEA to Lisbon LIS at the right price  

Airfares to Lisbon LIS from Seattle SEA currently cost between $639 and $714. It’s usually cheaper to book a round trip than two separate one-way flights. Prices and availability subject to change. Additional terms may apply. 

 

Book one-way flights from Seattle SEA to Lisbon LIS 

If you want to be flexible about when you return, or keep your travel options open ended, a one-way flight could be just the ticket! You’ll find one-way airfares from Seattle SEA to Lisbon LIS on Travelocity starting at $466. Prices and availability subject to change. Additional terms may apply. 

 

Get to Lisbon LIS from Seattle SEA quicker with direct flights. 

Get to Lisbon faster, without the hassle of changing planes and moving baggage, by booking a direct flight. Expect your direct flight to LIS from SEA to take around hour(s) min(s).  

 

Find our cheapest airfares for flights from Seattle SEA to Lisbon LIS

Find cheap flight deals by using our search filters to sort results starting with the lowest price airfares to LIS from SEA. Our Price Match Promise means if you find a lower rate on Travelocity.com or on another US-based website within 24 hours of booking, we’ll credit or refund the difference.  

 

Get our best airfare deals for your flight from Seattle SEA to Lisbon LIS today 

If you’re flexible about when you travel, November is usually the cheapest month to fly from Seattle SEA to Lisbon LIS. If you need to be more specific, search by date and arrival and departure times.Then, compare prices across different airlines, and sort results by lowest price first. 

 

Book flexible airline tickets for flights to Lisbon LIS from Seattle SEA 

Some airlines let you change your travel dates without charging a fee. Use our ‘no change fee’ filter to see which flights to LIS from SEA have this option.  

 

Travel with confidence when you book flights to Lisbon LIS from Seattle SEA with Travelocity 

We’ve secured fantastic deals with all the main airline carriers and it’s easy to compare, choose, and book with Travelocity. With 24/7 customer service and our free 'App', we’ll always keep you moving. 

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.