AirHint found the following cheapest return flights from Brussels (BRU) to Basel (BSL) in August 2025 (see full year).

Return flights

29 Aug - 09 Sep	Vueling Airlines
29 Aug - 01 Sep	Ryanair
28 Aug - 09 Sep	Vueling Airlines
29 Aug - 18 Sep	Vueling Airlines
29 Aug - 06 Sep	Vueling Airlines
29 Aug - 02 Sep	Vueling Airlines
28 Aug - 18 Sep	Vueling Airlines
28 Aug - 06 Sep	Vueling Airlines
29 Aug - 08 Sep	Vueling Airlines
29 Aug - 03 Sep	Vueling Airlines
16 Aug - 19 Aug	KLM
19 Aug - 24 Aug	KLM
15 Aug - 21 Aug	KLM
11 Aug - 15 Aug	KLM
14 Aug - 17 Aug	KLM
21 Aug - 23 Aug	KLM
06 Aug - 10 Aug	KLM
24 Aug - 29 Aug	KLM
09 Aug - 16 Aug	KLM
17 Aug - 21 Aug	KLM

Also check the deals for one-way flights from Brussels to Basel in August.

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 Basel in August from 164€

Return flights