AirHint found the following cheapest return flights from New York (JFK) to Geneva (GVA) in September 2025 (see full year).

Return flights

15 Sep - 25 Sep	TAP
05 Sep - 07 Sep	TAP
12 Sep - 15 Sep	TAP
10 Sep - 15 Sep	TAP
18 Sep - 22 Sep	TAP
19 Sep - 22 Sep	TAP
25 Sep - 09 Oct	Iberia For Level
01 Sep - 29 Sep	SWISS
24 Sep - 24 Oct	Iberia For Level
01 Sep - 29 Sep	Delta	direct
17 Sep - 24 Sep	Iberia For Level
10 Sep - 15 Sep	SWISS	direct
25 Sep - 09 Oct	United	direct

Also check the deals for one-way flights from New York to Geneva 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 New York to Geneva in September from 383€

Return flights