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

Return flights

06 Dec - 08 Dec	Croatia Airlines	direct
20 Dec - 27 Dec	Ryanair
21 Dec - 28 Dec	Ryanair
12 Dec - 15 Dec	Croatia Airlines	direct
05 Dec - 10 Dec	Croatia Airlines	direct
05 Dec - 08 Dec	Croatia Airlines	direct
23 Dec - 27 Dec	Ryanair
01 Dec - 03 Dec	Ryanair
21 Dec - 27 Dec	Ryanair
01 Dec - 05 Dec	Ryanair
30 Dec - 02 Jan	KLM
26 Dec - 01 Jan	Croatia Airlines	direct
28 Dec - 02 Jan	Austrian Airlines
27 Dec - 01 Jan	Austrian Airlines
27 Dec - 01 Jan	Croatia Airlines	direct
30 Dec - 02 Jan	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 $150

Return flights