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

Return flights

25 Sep - 29 Sep	Ryanair
19 Sep - 22 Sep	Ryanair
03 Sep - 07 Sep	Austrian Airlines
19 Sep - 24 Sep	Ryanair
09 Sep - 26 Sep	Vueling Airlines
09 Sep - 19 Sep	Vueling Airlines
10 Sep - 12 Sep	Vueling Airlines
10 Sep - 26 Sep	Vueling Airlines
10 Sep - 19 Sep	Vueling Airlines
08 Sep - 12 Sep	Vueling Airlines

Also check the deals for one-way flights from Cagliari to Copenhagen 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 Copenhagen in September from $181

Return flights