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

Return flights

26 Dec - 09 Jan	Ryanair
22 Dec - 12 Jan	Ryanair
24 Dec - 12 Jan	Aeroitalia
26 Dec - 01 Jan	Ryanair
31 Dec - 01 Jan	Ryanair
22 Dec - 26 Dec	Ryanair
22 Dec - 31 Dec	Ryanair
25 Dec - 31 Dec	Aeroitalia
21 Dec - 17 Jan	Aeroitalia
24 Dec - 31 Dec	Aeroitalia
24 Dec - 05 Jan	Aeroitalia
29 Dec - 03 Jan	Ryanair
24 Dec - 04 Jan	Aeroitalia
31 Dec - 03 Jan	Aeroitalia
23 Dec - 26 Dec	Ryanair
23 Dec - 30 Dec	Ryanair

Also check the deals for one-way flights from Cagliari to Bucharest in December.

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 December from $204

Return flights