AirHint found the following cheapest return flights from Split (SPU) to Istanbul (IST) in May 2026 (see full year).
Return flights
| 01 May - 04 May | Croatia Airlines | direct | |
| 10 May - 17 May | Croatia Airlines | direct | |
| 07 May - 10 May | Croatia Airlines | direct | |
| 16 May - 20 May | Croatia Airlines | direct | |
| 05 May - 09 May | KLM |
Also check the deals for one-way flights from Split to Istanbul in May.
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