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

Return flights

24 Sep - 21 Oct	Condor
30 Sep - 28 Oct	Condor
16 Sep - 18 Sep	Condor
07 Sep - 11 Sep	Condor
07 Sep - 10 Sep	Condor
29 Sep - 06 Oct	Condor
15 Sep - 14 Oct	Condor
17 Sep - 24 Sep	Condor
09 Sep - 16 Sep	Condor
16 Sep - 30 Sep	Condor
16 Sep - 22 Sep	Air Canada
16 Sep - 01 Oct	Condor
21 Sep - 07 Oct	Condor
09 Sep - 30 Sep	Condor
15 Sep - 30 Sep	Condor
26 Sep - 10 Oct	Frontier Airlines
09 Sep - 12 Sep	Condor
30 Sep - 25 Oct	Condor
26 Sep - 06 Oct	Condor
08 Sep - 04 Oct	Condor

Also check the deals for one-way flights from San Francisco to Paris 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 Paris in September from $499

Return flights