Seattle / Tacoma (SEA) to Lisbon (LIS) flight deal in economy from $730
SEASeattle–Tacoma International Airport
Seattle / Tacoma, United States
LISPortela Airport
Lisbon, Portugal
$943 USD
-23%$730 USD
Verified 3 days agoDecember 2026
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Fair Availability
26% of dates checked are available within 10% of the lowest price
Tuesday, December 29th, 2026
10 round-trip options
Returning
Sun, Jan 3, 2027•5 Day Trip
$1,306 USD
Returning
Mon, Jan 4, 2027•6 Day Trip
$1,087 USD
Returning
Tue, Jan 5, 2027•7 Day Trip
$786 USD
Returning
Wed, Jan 6, 2027•8 Day Trip
$794 USD
Returning
Thu, Jan 7, 2027•9 Day Trip
$776 USD
Returning
Fri, Jan 8, 2027•10 Day Trip
$776 USD
Returning
Sat, Jan 9, 2027•11 Day Trip
$836 USD
Returning
Sun, Jan 10, 2027•12 Day Trip
$836 USD
Returning
Mon, Jan 11, 2027•13 Day Trip
$836 USD
Returning
Tue, Jan 12, 2027•14 Day Trip
$786 USD