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
Friday, August 14th, 2026
6 round-trip options
Returning
Wed, Aug 19, 2026•5 Day Trip
$858 USD
Returning
Thu, Aug 20, 2026•6 Day Trip
$865 USD
Returning
Fri, Aug 21, 2026•7 Day Trip
$995 USD
Returning
Sat, Aug 22, 2026•8 Day Trip
$907 USD
Returning
Sun, Aug 23, 2026•9 Day Trip
$878 USD
Returning
Mon, Aug 24, 2026•10 Day Trip
$878 USD