AirHint found the following cheapest return flights from Marseille (MRS) to Istanbul (IST) in September 2026 (see full year).
Return flights
| 04 Sep - 20 Sep | Pegasus Airlines | direct | |
| 04 Sep - 19 Sep | Pegasus Airlines | direct | |
| 09 Sep - 13 Sep | Pegasus Airlines | direct | |
| 01 Sep - 02 Sep | Ryanair | ||
| 01 Sep - 02 Sep | Pegasus Airlines | direct |
Also check the deals for one-way flights from Marseille to Istanbul in September.
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