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

Return flights

05 Dec - 09 Dec	Croatia Airlines	direct
01 Dec - 10 Dec	Croatia Airlines	direct
23 Dec - 26 Dec	Croatia Airlines	direct
04 Dec - 08 Dec	KLM
26 Dec - 02 Jan	Croatia Airlines	direct
15 Dec - 22 Dec	Lufthansa
14 Dec - 21 Dec	Croatia Airlines	direct
15 Dec - 22 Dec	Croatia Airlines	direct
13 Dec - 20 Dec	Croatia Airlines
29 Dec - 01 Jan	KLM
29 Dec - 01 Jan	Croatia Airlines	direct
04 Dec - 08 Dec	Croatia Airlines	direct

Also check the deals for one-way flights from Zagreb to Copenhagen 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 Zagreb to Copenhagen in December from 126€

Return flights