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

Return flights

01 Dec - 14 Dec	Ryanair
08 Dec - 17 Dec	Ryanair
03 Dec - 06 Dec	Aeroitalia
01 Dec - 07 Dec	Ryanair
04 Dec - 05 Dec	Ryanair
05 Dec - 08 Dec	Ryanair
13 Dec - 15 Dec	Aeroitalia
24 Dec - 27 Dec	Ryanair
03 Dec - 07 Dec	Ryanair
05 Dec - 09 Dec	Ryanair
31 Dec - 07 Jan	Ryanair
24 Dec - 03 Jan	Ryanair
20 Dec - 01 Jan	Ryanair
22 Dec - 01 Jan	Ryanair
23 Dec - 01 Jan	Ryanair
27 Dec - 01 Jan	Aeroitalia
30 Dec - 05 Jan	Ryanair
31 Dec - 06 Jan	Ryanair
29 Dec - 05 Jan	Ryanair
31 Dec - 04 Jan	Aeroitalia

Also check the deals for one-way flights from Cagliari to Istanbul 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 Istanbul in December from 164€

Return flights