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

Return flights

15 Sep - 18 Sep	Ryanair
24 Sep - 28 Sep	Ryanair
10 Sep - 17 Sep	Ryanair
09 Sep - 16 Sep	Vueling Airlines
19 Sep - 21 Sep	Ryanair
19 Sep - 22 Sep	Ryanair
10 Sep - 13 Sep	Air France
11 Sep - 14 Sep	Air France
20 Sep - 21 Sep	Ryanair
10 Sep - 14 Sep	Ryanair
19 Sep - 10 Oct	Vueling Airlines
19 Sep - 02 Oct	Vueling Airlines
16 Sep - 02 Oct	Vueling Airlines
19 Sep - 03 Oct	Vueling Airlines
16 Sep - 03 Oct	Vueling Airlines
12 Sep - 02 Oct	Vueling Airlines
12 Sep - 03 Oct	Vueling Airlines
28 Sep - 10 Oct	Vueling Airlines
29 Sep - 10 Oct	Vueling Airlines
28 Sep - 03 Oct	Vueling Airlines

Also check the deals for one-way flights from Bologna 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 Bologna to Basel in September from $183

Return flights