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

Return flights

07 Sep - 18 Sep	Condor
26 Sep - 19 Oct	Condor
22 Sep - 29 Sep	Condor
09 Sep - 23 Sep	TAP
07 Sep - 11 Sep	Condor
07 Sep - 23 Sep	Condor
23 Sep - 04 Oct	Scandinavian Airlines
16 Sep - 30 Sep	TAP
02 Sep - 06 Sep	Condor
04 Sep - 11 Sep	Condor
09 Sep - 16 Sep	SWISS	direct
03 Sep - 10 Sep	United	direct
30 Sep - 07 Oct	United	direct
24 Sep - 01 Oct	United	direct
23 Sep - 04 Oct	United	direct
26 Sep - 19 Oct	SWISS	direct
27 Sep - 04 Oct	United	direct
26 Sep - 09 Oct	British Airways

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 452€

Return flights