Cheapest return SFO–OSL flights, September

AirHint found the following cheapest return flights from San Francisco (SFO) to Oslo (OSL) in September 2026 (see full year).

Return flights

07 Sep - 14 Sep Air France
08 Sep - 15 Sep Air France
14 Sep - 21 Sep Air France
09 Sep - 16 Sep KLM
21 Sep - 28 Sep Air France
22 Sep - 29 Sep Air France
15 Sep - 22 Sep Air France
28 Sep - 05 Oct Air France
29 Sep - 06 Oct Air France
30 Sep - 07 Oct British Airways
16 Sep - 23 Sep KLM
10 Sep - 17 Sep Air France
11 Sep - 18 Sep Air France
24 Sep - 01 Oct Air France
27 Sep - 04 Oct KLM
25 Sep - 02 Oct Air France
26 Sep - 03 Oct British Airways

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

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