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

Return flights

11 Aug - 26 Aug	British Airways
18 Aug - 25 Aug	Scandinavian Airlines
06 Aug - 19 Aug	Scandinavian Airlines
31 Aug - 07 Sep	United
01 Aug - 20 Aug	British Airways
20 Aug - 27 Aug	United
22 Aug - 29 Aug	Scandinavian Airlines
06 Aug - 13 Aug	United
16 Aug - 23 Aug	Scandinavian Airlines
28 Aug - 04 Sep	United
08 Aug - 15 Aug	Scandinavian Airlines
04 Aug - 11 Aug	United

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

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 August from $478

Return flights