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

Return flights

07 Dec - 14 Dec	Scandinavian Airlines
08 Dec - 18 Dec	SWISS
01 Dec - 08 Dec	Scandinavian Airlines
04 Dec - 11 Dec	Scandinavian Airlines
15 Dec - 08 Jan	SWISS
11 Dec - 18 Dec	Brussels Airlines
14 Dec - 07 Jan	SWISS
15 Dec - 07 Jan	Air Canada
15 Dec - 06 Jan	British Airways
16 Dec - 07 Jan	British Airways
13 Dec - 07 Jan	British Airways
16 Dec - 08 Jan	Lufthansa
24 Dec - 29 Dec	Lufthansa
12 Dec - 07 Jan	Air Canada
20 Dec - 29 Dec	Lufthansa
12 Dec - 19 Dec	Scandinavian Airlines
20 Dec - 31 Dec	Lufthansa
27 Dec - 03 Jan	TAP
22 Dec - 29 Dec	Scandinavian Airlines

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

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 December from $470

Return flights