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 14 days agoAugust 2026
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Good Availability
51% of dates checked are available within 10% of the lowest price
Thursday, August 20th, 2026
6 round-trip options
Returning
Tue, Aug 25, 2026•5 Day Trip
$655 USD
Returning
Wed, Aug 26, 2026•6 Day Trip
$666 USD
Returning
Thu, Aug 27, 2026•7 Day Trip
$693 USD
Returning
Fri, Aug 28, 2026•8 Day Trip
$676 USD
Returning
Sat, Aug 29, 2026•9 Day Trip
$783 USD
Returning
Sun, Aug 30, 2026•10 Day Trip
$666 USD