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

Return flights

24 Sep - 29 Sep	Ryanair
17 Sep - 19 Sep	Ryanair
15 Sep - 22 Sep	Ryanair
26 Sep - 02 Oct	Ryanair
18 Sep - 24 Sep	Ryanair
18 Sep - 22 Sep	Ryanair
22 Sep - 27 Sep	Aeroitalia
29 Sep - 03 Oct	easyJet
22 Sep - 26 Sep	Aeroitalia
25 Sep - 01 Oct	Ryanair
05 Sep - 10 Sep	Ryanair
11 Sep - 16 Sep	Ryanair
09 Sep - 16 Sep	Ryanair
24 Sep - 11 Oct	Vueling Airlines
24 Sep - 13 Oct	Vueling Airlines
28 Sep - 16 Oct	Vueling Airlines
26 Sep - 16 Oct	Vueling Airlines
28 Sep - 11 Oct	Vueling Airlines
26 Sep - 11 Oct	Vueling Airlines
28 Sep - 13 Oct	Vueling Airlines

Also check the deals for one-way flights from Cagliari to Athens 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 Athens in September from 147€

Return flights