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

Return flights

24 Sep - 28 Sep	Ryanair
30 Sep - 05 Oct	Ryanair
11 Sep - 16 Sep	Ryanair
16 Sep - 26 Sep	Ryanair
20 Sep - 01 Oct	Ryanair
08 Sep - 12 Sep	Ryanair
06 Sep - 19 Sep	Ryanair
12 Sep - 19 Sep	Ryanair
09 Sep - 16 Sep	Ryanair
08 Sep - 14 Sep	Ryanair
20 Sep - 30 Sep	Ryanair
09 Sep - 12 Sep	Ryanair
27 Sep - 11 Oct	Ryanair
18 Sep - 03 Oct	Delta
19 Sep - 03 Oct	Delta
30 Sep - 31 Oct	Delta
28 Sep - 02 Oct	LOT

Also check the deals for one-way flights from Zagreb 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 Zagreb to New York in September from 432€

Return flights