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

Return flights

22 Sep - 18 Oct	Iberia
15 Sep - 11 Oct	British Airways
16 Sep - 21 Sep	Air Canada
24 Sep - 18 Oct	Lufthansa
28 Sep - 18 Oct	Lufthansa
09 Sep - 19 Sep	British Airways
08 Sep - 04 Oct	British Airways
23 Sep - 26 Sep	Lufthansa
23 Sep - 27 Sep	Lufthansa
11 Sep - 18 Sep	Austrian Airlines
21 Sep - 24 Sep	Lufthansa
27 Sep - 11 Oct	Austrian Airlines
17 Sep - 22 Sep	Delta
13 Sep - 16 Sep	Lufthansa
19 Sep - 22 Sep	Lufthansa
23 Sep - 28 Sep	Air Canada

Also check the deals for one-way flights from New York to Zagreb 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 Zagreb in September from $481

Return flights