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

Return flights

02 Sep - 07 Sep	Transavia France	direct
02 Sep - 09 Sep	Transavia France	direct
07 Sep - 14 Sep	Transavia France
28 Sep - 19 Oct	easyJet
29 Sep - 19 Oct	Volotea
28 Sep - 18 Oct	easyJet
26 Sep - 19 Oct	Volotea
29 Sep - 18 Oct	Volotea
01 Sep - 08 Sep	Volotea
08 Sep - 14 Sep	Volotea
27 Sep - 19 Oct	Transavia France
29 Sep - 17 Oct	Volotea
27 Sep - 18 Oct	Volotea

Also check the deals for one-way flights from Strasbourg 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 Strasbourg to Istanbul in September from $138

Return flights