AirHint found the following cheapest return flights from Granada (GRX) to Istanbul (IST) in September 2025 (see full year).

Return flights

12 Sep - 18 Sep	Vueling Airlines
17 Sep - 04 Oct	Vueling Airlines
10 Sep - 17 Sep	Vueling Airlines
22 Sep - 28 Sep	Vueling Airlines
08 Sep - 18 Sep	Vueling Airlines
12 Sep - 15 Sep	Vueling Airlines
14 Sep - 21 Sep	Vueling Airlines
17 Sep - 23 Sep	Vueling Airlines
08 Sep - 10 Sep	Vueling Airlines
07 Sep - 14 Sep	Vueling Airlines

Also check the deals for one-way flights from Granada to Istanbul 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 Granada to Istanbul in September from 347€

Return flights