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

Return flights

30 Sep - 06 Oct	Ryanair
30 Sep - 04 Oct	Ryanair
10 Sep - 16 Sep	Pegasus Airlines
30 Sep - 07 Oct	Ryanair
11 Sep - 16 Sep	Pegasus Airlines
11 Sep - 23 Sep	Pegasus Airlines
11 Sep - 30 Sep	Pegasus Airlines
30 Sep - 02 Oct	Ryanair
11 Sep - 18 Sep	Pegasus Airlines
30 Sep - 10 Oct	Ryanair
10 Sep - 18 Sep	Pegasus Airlines
08 Sep - 15 Oct	AJet
11 Sep - 24 Sep	Pegasus Airlines
08 Sep - 17 Sep	Pegasus Airlines
14 Sep - 16 Sep	Pegasus Airlines
11 Sep - 22 Sep	Pegasus Airlines
27 Sep - 04 Oct	Ryanair
18 Sep - 02 Oct	Ryanair
29 Sep - 04 Oct	Ryanair
27 Sep - 11 Oct	Wizz Air Malta

Also check the deals for one-way flights from Bergamo 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 Bergamo to Istanbul in September from $132

Return flights