Oslo (OSL) to Seattle / Tacoma (SEA) flight deal in economy from $642
OSLOslo Airport, Gardermoen
Oslo, Norway
SEASeattle–Tacoma International Airport
Seattle / Tacoma, United States
$886 USD
-28%$642 USD
Verified about 10 hours agoAugust 2026
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Fair Availability
38% of dates checked are available within 10% of the lowest price
Thursday, August 20th, 2026
10 round-trip options
Returning
Tue, Aug 25, 2026•5 Day Trip
$661 USD
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Wed, Aug 26, 2026•6 Day Trip
$661 USD
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Thu, Aug 27, 2026•7 Day Trip
$683 USD
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Fri, Aug 28, 2026•8 Day Trip
$830 USD
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Sat, Aug 29, 2026•9 Day Trip
$683 USD
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Sun, Aug 30, 2026•10 Day Trip
$768 USD
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Mon, Aug 31, 2026•11 Day Trip
$661 USD
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Tue, Sep 1, 2026•12 Day Trip
$825 USD
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Wed, Sep 2, 2026•13 Day Trip
$714 USD
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Thu, Sep 3, 2026•14 Day Trip
$683 USD