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

Return flights

23 Sep - 30 Sep	Ryanair
24 Sep - 26 Sep	Ryanair
25 Sep - 02 Oct	Ryanair
23 Sep - 27 Sep	Ryanair
23 Sep - 26 Sep	Ryanair
25 Sep - 28 Sep	Ryanair
22 Sep - 02 Oct	Aeroitalia
22 Sep - 25 Sep	Aeroitalia
22 Sep - 26 Sep	Aeroitalia
17 Sep - 24 Sep	Aeroitalia
28 Sep - 01 Oct	Aeroitalia
20 Sep - 27 Sep	Aeroitalia
18 Sep - 25 Sep	Aeroitalia
29 Sep - 06 Oct	Aeroitalia
29 Sep - 10 Oct	Aeroitalia
28 Sep - 06 Oct	Aeroitalia
29 Sep - 17 Oct	Aeroitalia
28 Sep - 10 Oct	Aeroitalia
29 Sep - 03 Oct	Aeroitalia
28 Sep - 17 Oct	Aeroitalia

Also check the deals for one-way flights from Cagliari to Bucharest 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 Bucharest in September from 140€

Return flights