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

Return flights

13 Sep - 24 Sep	Lufthansa
14 Sep - 21 Sep	Lufthansa
10 Sep - 17 Sep	Lufthansa
29 Sep - 09 Oct	Lufthansa
29 Sep - 10 Oct	Lufthansa
29 Sep - 13 Oct	Lufthansa
30 Sep - 13 Oct	Lufthansa
30 Sep - 14 Oct	Lufthansa
28 Sep - 08 Oct	SWISS
24 Sep - 01 Oct	Austrian Airlines
25 Sep - 02 Oct	Austrian Airlines
30 Sep - 19 Oct	SWISS
27 Sep - 06 Oct	SWISS
13 Sep - 21 Sep	Lufthansa
24 Sep - 28 Sep	SWISS
21 Sep - 28 Sep	SWISS
08 Sep - 25 Sep	Austrian Airlines
23 Sep - 30 Sep	Lufthansa
25 Sep - 29 Sep	Lufthansa
20 Sep - 27 Sep	jetBlue

Also check the deals for one-way flights from New York to Split 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 Split in September from $426

Return flights