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

Return flights

06 Sep - 08 Sep	Croatia Airlines
11 Sep - 15 Sep	Vueling Airlines
11 Sep - 29 Sep	Vueling Airlines
11 Sep - 13 Sep	Vueling Airlines
11 Sep - 26 Sep	Vueling Airlines
11 Sep - 22 Sep	Vueling Airlines
12 Sep - 15 Sep	TUI fly Belgium
01 Sep - 15 Sep	TUI fly Belgium
02 Sep - 15 Sep	Vueling Airlines
03 Sep - 15 Sep	Vueling Airlines
30 Sep - 09 Oct	Vueling Airlines
19 Sep - 09 Oct	TUI fly Belgium
20 Sep - 09 Oct	Vueling Airlines
27 Sep - 09 Oct	Vueling Airlines

Also check the deals for one-way flights from Split 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 Split to Brussels in September from $238

Return flights