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

Return flights

02 Sep - 01 Oct	Pegasus Airlines
17 Sep - 23 Sep	Ryanair
17 Sep - 24 Sep	Ryanair
04 Sep - 15 Sep	Pegasus Airlines
10 Sep - 15 Sep	Pegasus Airlines
09 Sep - 22 Sep	Pegasus Airlines
12 Sep - 15 Sep	Ryanair
09 Sep - 16 Sep	Pegasus Airlines
17 Sep - 22 Sep	Ryanair
11 Sep - 15 Sep	Ryanair
18 Sep - 23 Sep	Ryanair
25 Sep - 02 Oct	Ryanair
26 Sep - 02 Oct	Ryanair
29 Sep - 02 Oct	Ryanair
29 Sep - 05 Oct	Ryanair
29 Sep - 01 Oct	Ryanair
28 Sep - 02 Oct	Ryanair
30 Sep - 02 Oct	Wizz Air Malta
30 Sep - 07 Oct	Wizz Air Malta
27 Sep - 02 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 121€

Return flights