Oslo (OSL) to Seattle / Tacoma (SEA) flight deal in economy from $648
OSLOslo Airport, Gardermoen
Oslo, Norway
SEASeattle–Tacoma International Airport
Seattle / Tacoma, United States
$821 USD
-21%$648 USD
Verified 15 days agoOctober 2026
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Good Availability
51% of dates checked are available within 10% of the lowest price
Sunday, October 11th, 2026
2 round-trip options
Returning
Tue, Oct 20, 2026•9 Day Trip
$659 USD
Returning
Wed, Oct 21, 2026•10 Day Trip
$670 USD