SEASeattle–Tacoma International Airport
Seattle / Tacoma, United States
LISPortela Airport
Lisbon, Portugal
$828 USD
-46%$446 USD
Verified Dec 1, 2025 at 4:08 AMDecember 2025
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Limited Availability
19% of dates checked are available within 10% of the lowest price
Monday, December 15th, 2025
10 round-trip options
Returning
Sat, Dec 20, 2025•5 Day Trip
$1,222 USD
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Sun, Dec 21, 2025•6 Day Trip
$883 USD
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Mon, Dec 22, 2025•7 Day Trip
$804 USD
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Tue, Dec 23, 2025•8 Day Trip
$658 USD
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Wed, Dec 24, 2025•9 Day Trip
$711 USD
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Thu, Dec 25, 2025•10 Day Trip
$711 USD
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Fri, Dec 26, 2025•11 Day Trip
$838 USD
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Sat, Dec 27, 2025•12 Day Trip
$1,136 USD
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Sun, Dec 28, 2025•13 Day Trip
$1,345 USD
Returning
Mon, Dec 29, 2025•14 Day Trip
$1,347 USD