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

Return flights

02 Dec - 07 Dec	KLM
05 Dec - 14 Dec	Ryanair
06 Dec - 14 Dec	Ryanair
09 Dec - 14 Dec	KLM
07 Dec - 14 Dec	Ryanair
20 Dec - 26 Dec	Croatia Airlines
09 Dec - 16 Dec	KLM
10 Dec - 16 Dec	KLM
10 Dec - 14 Dec	KLM
23 Dec - 07 Jan	LOT
24 Dec - 07 Jan	Air Serbia
01 Dec - 09 Dec	Delta
30 Dec - 07 Jan	LOT
30 Dec - 08 Jan	LOT
27 Dec - 07 Jan	LOT
23 Dec - 12 Jan	Turkish Airlines
27 Dec - 12 Jan	Turkish Airlines
26 Dec - 09 Jan	KLM
27 Dec - 06 Jan	LOT
16 Dec - 01 Jan	Delta

Also check the deals for one-way flights from Zagreb to Newark 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 Newark in December from 477€

Return flights