Cheapest return SEA–OSL flights, October

AirHint found the following cheapest return flights from Seattle (SEA) to Oslo (OSL) in October 2026 (see full year).

Return flights

05 Oct - 12 Oct Icelandair
07 Oct - 14 Oct Icelandair
14 Oct - 21 Oct Icelandair
08 Oct - 15 Oct Icelandair
18 Oct - 25 Oct Icelandair
12 Oct - 19 Oct Icelandair
06 Oct - 13 Oct Icelandair
11 Oct - 18 Oct Icelandair
07 Oct - 15 Oct Icelandair
22 Oct - 29 Oct Icelandair

Also check the deals for one-way flights from Seattle to Oslo in October.

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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