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
Sunday, August 23rd, 2026
6 round-trip options
Returning
Fri, Aug 28, 2026•5 Day Trip
$1,162 USD
Returning
Sat, Aug 29, 2026•6 Day Trip
$844 USD
Returning
Sun, Aug 30, 2026•7 Day Trip
$715 USD
Returning
Mon, Aug 31, 2026•8 Day Trip
$716 USD
Returning
Tue, Sep 1, 2026•9 Day Trip
$671 USD
Returning
Wed, Sep 2, 2026•10 Day Trip
$883 USD