AirHint found the following cheapest return flights from Zurich (ZRH) to Graz (GRZ) in December 2025 (see full year).

Return flights

14 Dec - 26 Dec	SWISS	direct
12 Dec - 14 Dec	SWISS	direct
15 Dec - 29 Dec	SWISS	direct
14 Dec - 29 Dec	SWISS	direct
29 Dec - 07 Jan	SWISS	direct
26 Dec - 28 Dec	Austrian Airlines
16 Dec - 29 Dec	Lufthansa
17 Dec - 29 Dec	Lufthansa
19 Dec - 21 Dec	Lufthansa
14 Dec - 14 Dec	SWISS
19 Dec - 21 Dec	SWISS	direct

Also check the deals for one-way flights from Zurich to Graz 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 Zurich to Graz in December from 197€

Return flights