Cheapest return flights from Istanbul to Brussels in September from $124

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

Return flights

25 Sep - 26 Sep Pegasus Airlines direct
25 Sep - 27 Sep Pegasus Airlines direct
17 Sep - 23 Sep Pegasus Airlines direct
17 Sep - 20 Sep Pegasus Airlines direct
25 Sep - 28 Sep Pegasus Airlines direct
24 Sep - 27 Sep Pegasus Airlines direct
18 Sep - 24 Sep Pegasus Airlines direct
16 Sep - 19 Sep Pegasus Airlines direct
16 Sep - 18 Sep Pegasus Airlines direct
16 Sep - 23 Sep Pegasus Airlines direct
25 Sep - 02 Oct Pegasus Airlines direct
25 Sep - 09 Oct Pegasus Airlines
27 Sep - 04 Oct Pegasus Airlines
27 Sep - 04 Oct Pegasus Airlines direct
26 Sep - 05 Oct Wizz Air
29 Sep - 03 Oct AJet direct
26 Sep - 05 Oct AJet direct
29 Sep - 05 Oct AJet direct
29 Sep - 06 Oct AJet direct
25 Sep - 09 Oct Pegasus Airlines direct

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