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 agoAugust 2026
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Fair Availability
26% of dates checked are available within 10% of the lowest price
Saturday, August 1st, 2026
0 round-trip options
No flight details available for this date.