Cheapest return flights from Brussels to Istanbul in September from £77

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

Return flights

21 Sep - 30 Sep Pegasus Airlines
27 Sep - 11 Oct Pegasus Airlines direct
14 Sep - 11 Oct Pegasus Airlines direct
04 Sep - 13 Oct Pegasus Airlines direct
20 Sep - 25 Sep Pegasus Airlines direct
19 Sep - 25 Sep Pegasus Airlines direct
18 Sep - 25 Sep Pegasus Airlines direct
26 Sep - 02 Oct Pegasus Airlines direct
28 Sep - 02 Oct Pegasus Airlines direct
28 Sep - 04 Oct Pegasus Airlines direct
27 Sep - 04 Oct Pegasus Airlines direct
18 Sep - 24 Sep Pegasus Airlines direct
10 Sep - 24 Sep Pegasus Airlines direct
17 Sep - 24 Sep Pegasus Airlines direct
24 Sep - 27 Sep Pegasus Airlines direct
20 Sep - 27 Sep Pegasus Airlines direct
20 Sep - 24 Sep Pegasus Airlines direct
25 Sep - 09 Oct Pegasus Airlines direct
28 Sep - 07 Oct Pegasus Airlines direct
30 Sep - 02 Oct Pegasus Airlines direct

Also check the deals for one-way flights from Brussels to Istanbul in September.

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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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