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
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Limited Availability
15% of dates checked are available within 10% of the lowest price
Wednesday, November 18th, 2026
9 round-trip options
Returning
Mon, Nov 23, 2026•5 Day Trip
$823 USD
Returning
Tue, Nov 24, 2026•6 Day Trip
$740 USD
Returning
Wed, Nov 25, 2026•7 Day Trip
$743 USD
Returning
Thu, Nov 26, 2026•8 Day Trip
$743 USD
Returning
Sat, Nov 28, 2026•10 Day Trip
$834 USD
Returning
Sun, Nov 29, 2026•11 Day Trip
$834 USD
Returning
Mon, Nov 30, 2026•12 Day Trip
$834 USD
Returning
Tue, Dec 1, 2026•13 Day Trip
$774 USD
Returning
Wed, Dec 2, 2026•14 Day Trip
$763 USD