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

Return flights

01 Sep - 08 Sep	SWISS
01 Sep - 15 Sep	SWISS
08 Sep - 15 Sep	SWISS
01 Sep - 11 Sep	SWISS
01 Sep - 16 Sep	SWISS
03 Sep - 12 Sep	Air France
01 Sep - 17 Sep	Air France
01 Sep - 12 Sep	Air France
23 Sep - 30 Sep	Norse Atlantic Airways
24 Sep - 01 Oct	Lufthansa
02 Sep - 16 Sep	Scandinavian Airlines

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 334€

Return flights