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

Return flights

11 Sep - 18 Sep	SalamAir
26 Sep - 02 Oct	Kuwait Airways
05 Sep - 12 Sep	Air India
19 Sep - 29 Sep	Kuwait Airways
13 Sep - 23 Sep	IndiGo
24 Sep - 06 Oct	Air India
19 Sep - 27 Sep	IndiGo
24 Sep - 27 Sep	IndiGo
27 Sep - 02 Oct	Etihad Airways
02 Sep - 07 Sep	Etihad Airways
30 Sep - 02 Oct	Etihad Airways
01 Sep - 08 Sep	IndiGo
01 Sep - 06 Sep	Air India Express
08 Sep - 08 Sep	Air Arabia

Also check the deals for one-way flights from Bangalore 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 Bangalore to Istanbul in September from $327

Return flights