Seattle / Tacoma (SEA) to Lisbon (LIS) flight deal in economy from $740
SEASeattle–Tacoma International Airport
Seattle / Tacoma, United States
LISPortela Airport
Lisbon, Portugal
$948 USD
-22%$740 USD
Verified about 7 hours agoNovember 2026
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Limited Availability
15% of dates checked are available within 10% of the lowest price
Sunday, November 22nd, 2026
9 round-trip options
Returning
Fri, Nov 27, 2026•5 Day Trip
$835 USD
Returning
Sat, Nov 28, 2026•6 Day Trip
$854 USD
Returning
Sun, Nov 29, 2026•7 Day Trip
$864 USD
Returning
Mon, Nov 30, 2026•8 Day Trip
$846 USD
Returning
Wed, Dec 2, 2026•10 Day Trip
$775 USD
Returning
Thu, Dec 3, 2026•11 Day Trip
$755 USD
Returning
Fri, Dec 4, 2026•12 Day Trip
$755 USD
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Sat, Dec 5, 2026•13 Day Trip
$805 USD
Returning
Sun, Dec 6, 2026•14 Day Trip
$805 USD