SEA to OSL from $444 in economy – flightdeals.net

Home Premium Fare Deals About

Icelandair

Round Trip•Economy

Seattle–Tacoma International Airport

Seattle / Tacoma, United States

Oslo Airport, Gardermoen

$633 USD

-30%$444 USD

Verified 6 days ago

December 2026

Mon

Tue

Wed

Thu

Fri

Sat

Sun

30$552 1$456 2$475 3$475 4$475 5$475 6$475 7$475 8$475 9$456 10$475 11$630 12$488 13$513 14$560 15$543 16$903 17$808 18$922 19$952 20$883 21$891 22$856 23$724 24$730 25$774 26$667 27$585 28$640 29$513 30$573 31$597 1$612 2$647 3$580

Fair Availability

23% of dates checked are available within 10% of the lowest price

Friday, December 18th, 2026

3 round-trip options

Returning

Wed, Dec 23, 2026•5 Day Trip

$922 USD

Returning

Sat, Dec 26, 2026•8 Day Trip

$1,058 USD

Returning

Tue, Dec 29, 2026•11 Day Trip

$959 USD