Cheapest return flights from Brussels to Istanbul in September from $109

Best time to book flights for Brussels (BRU) to Istanbul (IST) flights at AirHint

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

Return flights

02 Sep - 16 Sep Pegasus Airlines direct
03 Sep - 18 Sep Pegasus Airlines direct
20 Sep - 23 Sep Pegasus Airlines direct
08 Sep - 16 Sep Pegasus Airlines direct
23 Sep - 30 Sep Ryanair
01 Sep - 14 Sep Pegasus Airlines
05 Sep - 12 Sep Pegasus Airlines direct
09 Sep - 13 Sep Pegasus Airlines direct
06 Sep - 13 Sep Pegasus Airlines direct
27 Sep - 30 Sep Ryanair
24 Sep - 01 Oct Air Serbia
24 Sep - 01 Oct Turkish 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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