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

Return flights

06 Sep - 13 Sep	FrenchBee	direct
23 Sep - 30 Sep	SWISS
08 Sep - 24 Sep	FrenchBee
08 Sep - 09 Sep	FrenchBee
08 Sep - 12 Sep	FrenchBee
08 Sep - 14 Sep	FrenchBee
13 Sep - 18 Sep	FrenchBee
09 Sep - 04 Oct	FrenchBee
02 Sep - 27 Sep	FrenchBee
06 Sep - 27 Sep	FrenchBee
20 Sep - 11 Oct	FrenchBee
13 Sep - 04 Oct	FrenchBee
11 Sep - 04 Oct	FrenchBee
18 Sep - 24 Sep	FrenchBee
22 Sep - 06 Oct	Aer Lingus
27 Sep - 08 Oct	FrenchBee
22 Sep - 03 Oct	FrenchBee
22 Sep - 01 Oct	FrenchBee
25 Sep - 02 Oct	Air Canada
24 Sep - 09 Oct	Hawaiian Airlines

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 $592

Return flights