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

Return flights

24 Sep - 06 Oct	Delta
22 Sep - 28 Sep	Air France
23 Sep - 04 Oct	Delta
24 Sep - 05 Oct	Delta
23 Sep - 03 Oct	Air France
30 Sep - 04 Oct	Delta
22 Sep - 26 Sep	KLM
24 Sep - 27 Sep	Scandinavian Airlines
20 Sep - 27 Sep	Scandinavian Airlines
20 Sep - 23 Sep	KLM
20 Sep - 24 Sep	KLM
18 Sep - 22 Sep	KLM
18 Sep - 23 Sep	KLM
19 Sep - 11 Oct	KLM
22 Sep - 24 Sep	Air Serbia
23 Sep - 24 Sep	Pegasus Airlines
26 Sep - 03 Oct	Turkish Airlines

Also check the deals for one-way flights from Hannover to New York 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 Hannover to New York in September from 419€

Return flights