AirHint found the following cheapest return flights from Bologna (BLQ) to Istanbul (SAW) in September 2025 (see full year).

Return flights

11 Sep - 19 Sep	Pegasus Airlines
17 Sep - 21 Oct	Pegasus Airlines
12 Sep - 19 Sep	Pegasus Airlines
09 Sep - 18 Sep	Pegasus Airlines
17 Sep - 19 Sep	Pegasus Airlines
15 Sep - 19 Sep	Pegasus Airlines
15 Sep - 18 Sep	Pegasus Airlines
16 Sep - 18 Sep	Pegasus Airlines
13 Sep - 17 Sep	Pegasus Airlines
14 Sep - 19 Sep	Pegasus Airlines
14 Sep - 18 Sep	Pegasus Airlines
27 Sep - 26 Oct	Ryanair
27 Sep - 08 Oct	Ryanair
16 Sep - 04 Oct	Pegasus Airlines
27 Sep - 12 Oct	Ryanair
24 Sep - 01 Oct	Ryanair
30 Sep - 07 Oct	Ryanair
30 Sep - 06 Oct	Ryanair
24 Sep - 04 Oct	Ryanair
29 Sep - 06 Oct	Ryanair

Also check the deals for one-way flights from Bologna 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 Bologna to Istanbul in September from $145

Return flights