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
Wednesday, December 23rd, 2026
10 round-trip options
Returning
Mon, Dec 28, 2026•5 Day Trip
$1,091 USD
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Tue, Dec 29, 2026•6 Day Trip
$995 USD
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Wed, Dec 30, 2026•7 Day Trip
$1,027 USD
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Thu, Dec 31, 2026•8 Day Trip
$1,022 USD
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Fri, Jan 1, 2027•9 Day Trip
$1,447 USD
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Sat, Jan 2, 2027•10 Day Trip
$1,474 USD
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Sun, Jan 3, 2027•11 Day Trip
$1,522 USD
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Mon, Jan 4, 2027•12 Day Trip
$1,303 USD
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Tue, Jan 5, 2027•13 Day Trip
$995 USD
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Wed, Jan 6, 2027•14 Day Trip
$1,006 USD