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

Return flights

07 Sep - 22 Sep	SWISS
01 Sep - 08 Sep	Austrian Airlines
09 Sep - 17 Sep	Lufthansa
08 Sep - 22 Sep	Lufthansa
28 Sep - 08 Oct	SWISS
01 Sep - 16 Sep	Austrian Airlines
10 Sep - 17 Sep	Lufthansa
30 Sep - 13 Oct	SWISS
07 Sep - 21 Sep	SWISS
29 Sep - 09 Oct	Lufthansa
29 Sep - 13 Oct	Austrian Airlines
29 Sep - 10 Oct	Lufthansa
05 Sep - 22 Sep	Austrian Airlines
30 Sep - 14 Oct	SWISS
07 Sep - 19 Sep	SWISS
08 Sep - 19 Sep	Austrian Airlines
26 Sep - 18 Oct	Scandinavian Airlines
30 Sep - 11 Oct	SWISS

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 333€

Return flights