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

Return flights

28 Sep - 04 Oct	Tunisair	direct
27 Sep - 16 Oct	Ryanair
24 Sep - 01 Oct	Ryanair
27 Sep - 01 Oct	Ryanair
27 Sep - 04 Oct	Ryanair
29 Sep - 09 Oct	Ryanair
29 Sep - 06 Oct	Nouvelair
22 Sep - 02 Oct	Nouvelair
29 Sep - 08 Oct	Ryanair
29 Sep - 04 Oct	Nouvelair
22 Sep - 24 Sep	Nouvelair
22 Sep - 26 Sep	Nouvelair
24 Sep - 26 Sep	Ryanair
24 Sep - 29 Sep	Ryanair
22 Sep - 30 Sep	Nouvelair
22 Sep - 29 Sep	Nouvelair	direct
22 Sep - 28 Sep	Nouvelair	direct
27 Sep - 29 Sep	Ryanair
23 Sep - 26 Sep	Tunisair
23 Sep - 29 Sep	Tunisair	direct

Also check the deals for one-way flights from Brussels to Tunis 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 Brussels to Tunis in September from 159€

Return flights