SEASeattle–Tacoma International Airport
Seattle / Tacoma, United States
OPOFrancisco Sá Carneiro Airport
Porto, Portugal
$670 USD
-48%$351 USD
Verified Mar 22, 2026 at 7:10 AMApril 2026
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Limited Availability
15% of dates checked are available within 10% of the lowest price
Monday, April 13th, 2026
Outbound Flights
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