$338 Find Cheap Flights from Portugal to Seattle - Compare and Save

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Cheap Flights from Portugal to Seattle

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Portugal to Seattle

Thu, Dec 3 - Sat, Dec 12
Multiple Airlines Logo
10:55 am - 11:50 amLIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
32h 55m2 stops London Luton Amsterdam Schiphol
Multiple Airlines Logo
1:25 pm - 7:10 pmSEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
21h 45m2 stops Salt Lake City London Heathrow
$817Multiple Airlines
Fri, Dec 25 - Fri, Jan 29
Multiple Airlines Logo
8:35 am - 5:00 pmLIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
16h 25m1 stop London Heathrow
Multiple Airlines Logo
6:40 pm - 9:20 pmSEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
18h 40m1 stop London Heathrow
$896Multiple Airlines
Fri, Dec 25 - Thu, Jan 28
Multiple Airlines Logo
8:35 am - 5:00 pmLIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
16h 25m1 stop London Heathrow
Multiple Airlines Logo
6:40 pm - 9:20 pmSEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
18h 40m1 stop London Heathrow
$896Multiple Airlines
Sun, Dec 13 - Sat, Dec 26
Icelandair Logo
2:00 pm - 5:00 pmLIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
35h 00m1 stop Reykjavik Keflavik Intl
Icelandair Logo
2:35 pm - 12:50 pmSEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
14h 15m1 stop Reykjavik Keflavik Intl
$903Icelandair
Thu, Dec 3 - Sat, Dec 12
Multiple Airlines Logo
9:05 am - 1:00 pmLIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
35h 55m3 stops Barcelona-El Prat Berlin Brandenburg Munich Franz Josef Strauss
Multiple Airlines Logo
7:45 am - 2:05 pmSEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
22h 20m3 stops Toronto Pearson Intl Frankfurt am Main Berlin Brandenburg
$903Multiple Airlines
Fri, Dec 25 - Wed, Jan 27
Multiple Airlines Logo
8:35 am - 5:00 pmLIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
16h 25m1 stop London Heathrow
Multiple Airlines Logo
6:40 pm - 7:20 pmSEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
16h 40m1 stop London Heathrow
$914Multiple Airlines
Thu, Dec 3 - Sat, Dec 12
Multiple Airlines Logo
8:35 am - 5:00 pmLIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
16h 25m1 stop London Heathrow
Multiple Airlines Logo
6:45 pm - 7:20 pmSEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
16h 35m1 stop London Heathrow
$921Multiple Airlines
Sat, Dec 5 - Mon, Dec 14
Multiple Airlines Logo
10:30 am - 11:01 pmLIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
20h 31m1 stop Los Angeles
Multiple Airlines Logo
2:35 pm - 7:15 pmSEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
20h 40m2 stops Reykjavik Keflavik Intl London Heathrow
$921Multiple Airlines
Wed, Dec 2 - Fri, Dec 11
Delta Logo
5:00 am - 11:50 amLIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
14h 50m1 stop Amsterdam Schiphol
Delta Logo
6:00 am - 11:25 amSEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
21h 25m2 stops Minneapolis St Paul Paris Charles de Gaulle
$990Delta
Fri, Dec 4 - Sun, Dec 13
Delta Logo
5:00 am - 11:50 amLIS  Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl
14h 50m1 stop Amsterdam Schiphol
Delta Logo
11:30 am - 5:30 pmSEA  Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado
22h 00m2 stops Salt Lake City Paris Charles de Gaulle
$990Delta
Booking Insights

KAYAK's insights & trends for flights to Seattle

Get data-powered insights and trends for flights to Seattle to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly to Seattle?

The cheapest month for flights to Seattle is February, where tickets cost $897 on average for return flights. On the other hand, the most expensive months are July and January, where the average cost of tickets from Portugal is $1,463 and $1,080 respectively. For one-way flights, the best month to travel is March with an average price of $762.

Good to know

Low season

February
Best time to beat the crowds with an average 28% drop in price.
Most popular time to fly and prices are also 23% lower on average.

FAQs - booking Seattle flights

  • How far is Seattle/Tacoma Intl Airport from central Seattle?

    You’ll need to travel 11 miles to reach the Seattle city center from Seattle/Tacoma Intl Airport.

  • What is the name of Seattle’s airport?

    When flying to Seattle, you'll arrive at Seattle/Tacoma Intl Airport (SEA). The airport is also known as Seattle-Tacoma Intl, Seattle/Tacoma, or Seattle/Tacoma Intl.

  • How does KAYAK find such low prices on flights to Seattle?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Seattle.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Seattle?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights to Seattle?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Seattle with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Seattle?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • How many direct flights to Seattle are there each week?

    Each week there are around 9,798 direct flights from within Portugal to Seattle. The most common day for departures is Sunday, with 20% of flights taking off on this day.

Top tips for finding cheap flights to Seattle

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Seattle flight deals.

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Lynnwood
Centralia
Fife
Lakewood
Westport
Lacey
Mukilteo
Woodinville
Poulsbo
Edmonds
Aberdeen
DuPont
Shoreline
Monroe
Castle Rock
Edgewood

More options for your flight to Seattle