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 29th, 2026
9 round-trip options
Returning
Fri, Dec 4, 2026•5 Day Trip
$825 USD
Returning
Sat, Dec 5, 2026•6 Day Trip
$795 USD
Returning
Sun, Dec 6, 2026•7 Day Trip
$796 USD
Returning
Mon, Dec 7, 2026•8 Day Trip
$766 USD
Returning
Wed, Dec 9, 2026•10 Day Trip
$746 USD
Returning
Thu, Dec 10, 2026•11 Day Trip
$746 USD
Returning
Fri, Dec 11, 2026•12 Day Trip
$786 USD
Returning
Sat, Dec 12, 2026•13 Day Trip
$836 USD
Returning
Sun, Dec 13, 2026•14 Day Trip
$836 USD