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

Return flights

21 Dec - 28 Dec	Ryanair
23 Dec - 28 Dec	Ryanair
20 Dec - 11 Jan	Ryanair
23 Dec - 29 Dec	Ryanair
23 Dec - 30 Dec	Ryanair
22 Dec - 26 Dec	Ryanair
22 Dec - 04 Jan	Ryanair
19 Dec - 30 Dec	Ryanair
18 Dec - 20 Dec	Ryanair
21 Dec - 29 Dec	Ryanair
19 Dec - 21 Dec	Ryanair
23 Dec - 01 Jan	Ryanair
26 Dec - 29 Dec	Ryanair
23 Dec - 02 Jan	Austrian Airlines
29 Dec - 03 Jan	Lufthansa
30 Dec - 03 Jan	Lufthansa
31 Dec - 05 Jan	Ryanair
28 Dec - 01 Jan	Ryanair
29 Dec - 02 Jan	Austrian Airlines
27 Dec - 02 Jan	Austrian Airlines

Also check the deals for one-way flights from Zagreb to Warsaw 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 Warsaw in December from 146€

Return flights