AirHint found the following cheapest return flights from San Francisco (SFO) to Zurich (ZRH) in September 2025 (see full year).

Return flights

09 Sep - 16 Sep	Condor
21 Sep - 24 Sep	Condor
15 Sep - 23 Sep	Condor
22 Sep - 02 Oct	Condor
14 Sep - 23 Sep	Condor
14 Sep - 22 Sep	Condor
24 Sep - 01 Oct	Condor
22 Sep - 03 Oct	Turkish Airlines
18 Sep - 25 Sep	Condor
23 Sep - 28 Sep	Turkish Airlines
20 Sep - 23 Sep	Scandinavian Airlines
28 Sep - 12 Oct	Turkish Airlines
09 Sep - 10 Oct	Condor
20 Sep - 27 Sep	Turkish Airlines
19 Sep - 11 Oct	Turkish Airlines
12 Sep - 26 Sep	Alaska Airlines
25 Sep - 18 Oct	ITA Airways
25 Sep - 04 Oct	Condor
10 Sep - 04 Oct	Turkish Airlines
15 Sep - 11 Oct	Condor

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

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 Zurich in September from $528

Return flights