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

Return flights

24 Sep - 26 Sep	Pegasus Airlines
26 Sep - 29 Sep	Pegasus Airlines
27 Sep - 30 Sep	Pegasus Airlines
24 Sep - 28 Sep	AJet
29 Sep - 05 Oct	AJet
24 Sep - 01 Oct	AJet
26 Sep - 03 Oct	Pegasus Airlines
28 Sep - 29 Sep	Pegasus Airlines
19 Sep - 24 Sep	Pegasus Airlines
15 Sep - 19 Sep	Pegasus Airlines
18 Sep - 21 Sep	AJet
17 Sep - 21 Sep	Pegasus Airlines
17 Sep - 24 Sep	Pegasus Airlines
19 Sep - 05 Oct	AJet
18 Sep - 05 Oct	AJet
29 Sep - 06 Oct	TUI fly Belgium	direct
21 Sep - 03 Oct	AJet
18 Sep - 01 Oct	Pegasus Airlines
19 Sep - 06 Oct	AJet
17 Sep - 04 Oct	SunExpress

Also check the deals for one-way flights from Izmir to Brussels 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 Izmir to Brussels in September from 137€

Return flights