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

Return flights

05 Sep - 07 Sep	easyJet	direct
07 Sep - 09 Sep	easyJet	direct
09 Sep - 16 Sep	Vueling Airlines
19 Sep - 21 Sep	Vueling Airlines
09 Sep - 12 Sep	Vueling Airlines
19 Sep - 23 Sep	Vueling Airlines
16 Sep - 19 Sep	Aeroitalia
26 Sep - 28 Sep	Ryanair
02 Sep - 05 Sep	easyJet	direct
05 Sep - 08 Sep	easyJet
30 Sep - 03 Oct	Aeroitalia
15 Sep - 02 Oct	Vueling Airlines
15 Sep - 05 Oct	Vueling Airlines
15 Sep - 03 Oct	Vueling Airlines
30 Sep - 03 Oct	easyJet	direct

Also check the deals for one-way flights from Cagliari 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 Cagliari to Basel in September from $182

Return flights