Cheapest return SPU–IST flights, September

AirHint found the following cheapest return flights from Split (SPU) to Istanbul (IST) in September 2026 (see full year).

Return flights

25 Sep - 27 Sep Croatia Airlines direct
30 Sep - 04 Oct Croatia Airlines direct
09 Sep - 16 Sep Croatia Airlines direct
18 Sep - 23 Sep Croatia Airlines direct
26 Sep - 27 Sep Croatia Airlines direct
26 Sep - 30 Sep Croatia Airlines direct
02 Sep - 11 Sep Croatia Airlines direct
17 Sep - 20 Sep Air Serbia
11 Sep - 15 Sep Croatia Airlines

Also check the deals for one-way flights from Split to Istanbul in September.

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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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