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
Tuesday, August 4th, 2026
6 round-trip options
Returning
Sun, Aug 9, 2026•5 Day Trip
$885 USD
Returning
Mon, Aug 10, 2026•6 Day Trip
$885 USD
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Tue, Aug 11, 2026•7 Day Trip
$885 USD
Returning
Wed, Aug 12, 2026•8 Day Trip
$780 USD
Returning
Thu, Aug 13, 2026•9 Day Trip
$796 USD
Returning
Fri, Aug 14, 2026•10 Day Trip
$791 USD