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

Return flights

17 Sep - 22 Sep	Ryanair
16 Sep - 24 Sep	Ryanair
18 Sep - 25 Sep	Ryanair
26 Sep - 28 Sep	Ryanair
15 Sep - 29 Sep	Ryanair
20 Sep - 22 Sep	Ryanair
25 Sep - 28 Sep	Ryanair
12 Sep - 15 Sep	Ryanair
01 Sep - 08 Sep	Ryanair
05 Sep - 06 Sep	Ryanair
22 Sep - 08 Oct	Aeroitalia
26 Sep - 08 Oct	Aeroitalia
22 Sep - 01 Oct	Aeroitalia
22 Sep - 06 Oct	Aeroitalia
29 Sep - 08 Oct	Aeroitalia
26 Sep - 15 Oct	Aeroitalia
21 Sep - 08 Oct	Aeroitalia
29 Sep - 15 Oct	Aeroitalia
17 Sep - 01 Oct	Aeroitalia
17 Sep - 06 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 $141

Return flights