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

Return flights

09 Sep - 23 Sep	TAP
09 Sep - 16 Sep	TAP
16 Sep - 07 Oct	TAP
16 Sep - 01 Oct	TAP
24 Sep - 09 Oct	TAP
24 Sep - 30 Sep	TAP
08 Sep - 24 Sep	FrenchBee	direct
11 Sep - 24 Sep	FrenchBee	direct
17 Sep - 30 Sep	TAP
01 Sep - 17 Sep	Alaska Airlines
20 Sep - 02 Oct	TAP
10 Sep - 19 Sep	Hawaiian Airlines
05 Sep - 19 Sep	Alaska Airlines
08 Sep - 21 Sep	Hawaiian Airlines
24 Sep - 06 Oct	Alaska Airlines
25 Sep - 12 Oct	FrenchBee	direct
03 Sep - 05 Oct	TAP

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 426€

Return flights