AirHint found the following cheapest return flights from San Francisco (SFO) to Oslo (OSL) in October 2025 (see full year).

Return flights

29 Oct - 05 Nov	Scandinavian Airlines
14 Oct - 21 Oct	Scandinavian Airlines
09 Oct - 16 Oct	Scandinavian Airlines
24 Oct - 31 Oct	United
19 Oct - 26 Oct	United
10 Oct - 22 Oct	Delta
04 Oct - 11 Oct	United

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

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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Cheapest return flights from San Francisco to Oslo in October from 424€

Return flights