SEA to OSL from $319 in economy – flightdeals.net

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British Airways

BABritish Airways

One Way•Economy

Seattle–Tacoma International Airport

Seattle / Tacoma, United States

Oslo Airport, Gardermoen

$497 USD

-36%$319 USD

Verified about 9 hours ago

September 2026

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31$633 1$585 2$585 3$635 4$635 5$319 6$322 7$585 8$585 9$585 10$635 11$635 12$319 13$319 14$585 15$348 16$633 17$693 18$462 19$352 20$352 21$490 22$352 23$352 24$352 25$348 26$352 27$352 28$352 29$352 30$352 1$352 2$693 3$348 4$352

Good Availability

47% of dates checked are available within 10% of the lowest price

Sunday, September 13th, 2026

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