AirHint found the following cheapest return flights from Rome (FCO) to Zagreb (ZAG) in December 2025 (see full year).

Return flights

31 Dec - 19 Jan	Ryanair	direct
31 Dec - 12 Jan	Ryanair	direct
31 Dec - 09 Jan	Ryanair	direct
31 Dec - 16 Jan	Ryanair	direct
29 Dec - 12 Jan	Ryanair	direct
29 Dec - 09 Jan	Ryanair	direct
29 Dec - 16 Jan	Ryanair	direct
31 Dec - 07 Jan	Ryanair
31 Dec - 05 Jan	Ryanair
31 Dec - 05 Jan	Ryanair	direct
29 Dec - 31 Dec	Ryanair
29 Dec - 31 Dec	Ryanair	direct
28 Dec - 31 Dec	Ryanair
28 Dec - 30 Dec	Lufthansa

Also check the deals for one-way flights from Rome to Zagreb 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 Rome to Zagreb in December from 61€

Return flights