SEASeattle–Tacoma International Airport
Seattle / Tacoma, United States
LISPortela Airport
Lisbon, Portugal
$796 USD
-44%$446 USD
Verified Nov 29, 2025 at 10:15 AMFair Availability
20% of dates checked are available within 10% of the lowest price
Friday, December 19th, 2025
10 round-trip options
Returning
Wed, Dec 24, 2025•5 Day Trip
$1,855 USD
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Thu, Dec 25, 2025•6 Day Trip
$1,880 USD
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Fri, Dec 26, 2025•7 Day Trip
$2,173 USD
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Sat, Dec 27, 2025•8 Day Trip
$2,178 USD
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Sun, Dec 28, 2025•9 Day Trip
$2,382 USD
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Mon, Dec 29, 2025•10 Day Trip
$2,573 USD
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Tue, Dec 30, 2025•11 Day Trip
$2,497 USD
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Wed, Dec 31, 2025•12 Day Trip
$2,599 USD
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Thu, Jan 1, 2026•13 Day Trip
$2,862 USD
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Fri, Jan 2, 2026•14 Day Trip
$3,261 USD