SEA to OSL from $539 in economy – flightdeals.net

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Air France

Delta Air Lines

DLDelta Air Lines

KLM

Round Trip•Economy

Seattle–Tacoma International Airport

Seattle / Tacoma, United States

Oslo Airport, Gardermoen

$693 USD

-22%$539 USD

Verified 15 days ago

September 2026

Mon

Tue

Wed

Thu

Fri

Sat

Sun

31$661 1$649 2$771 3$649 4$649 5$660 6$649 7$650 8$650 9$650 10$660 11$649 12$660 13$649 14$649 15$650 16$660 17$649 18$755 19$665 20$649 21$649 22$650 23$650 24$649 25$649 26$649 27$649 28$649 29$649 30$650 1$651 2$995 3$660 4$649

Fair Availability

30% of dates checked are available within 10% of the lowest price

Wednesday, September 16th, 2026

4 round-trip options

Returning

Fri, Sep 25, 2026•9 Day Trip

$660 USD

Returning

Sat, Sep 26, 2026•10 Day Trip

$767 USD

Returning

Sun, Sep 27, 2026•11 Day Trip

$660 USD

Returning

Wed, Sep 30, 2026•14 Day Trip

$661 USD