AirHint found the following cheapest return flights from Munich (MUC) to Basel (BSL) in September 2025 (see full year).

Return flights

19 Sep - 21 Sep	Lufthansa	direct
04 Sep - 07 Sep	KLM
12 Sep - 15 Sep	Vueling Airlines
12 Sep - 01 Oct	Vueling Airlines
05 Sep - 15 Sep	Vueling Airlines
17 Sep - 21 Sep	Lufthansa	direct
18 Sep - 21 Sep	Lufthansa	direct
04 Sep - 15 Sep	Vueling Airlines
05 Sep - 08 Sep	Vueling Airlines
04 Sep - 08 Sep	Vueling Airlines
04 Sep - 07 Sep	SWISS	direct
29 Sep - 07 Oct	Vueling Airlines
29 Sep - 01 Oct	Vueling Airlines

Also check the deals for one-way flights from Munich to Basel 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 Munich to Basel in September from $191

Return flights