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

Return flights

13 Dec - 14 Dec	Lufthansa
29 Dec - 14 Jan	Lufthansa
13 Dec - 20 Dec	Lufthansa
11 Dec - 14 Dec	SWISS	direct
11 Dec - 15 Dec	SWISS	direct
14 Dec - 21 Dec	Lufthansa
29 Dec - 12 Jan	Lufthansa
14 Dec - 21 Dec	SWISS	direct
29 Dec - 03 Jan	Lufthansa
12 Dec - 14 Dec	Austrian Airlines	direct
05 Dec - 08 Dec	SWISS	direct
05 Dec - 12 Dec	SWISS	direct
14 Dec - 15 Dec	Austrian Airlines
29 Dec - 13 Jan	Lufthansa
29 Dec - 14 Jan	SWISS	direct
29 Dec - 01 Jan	Austrian Airlines
29 Dec - 12 Jan	SWISS	direct
29 Dec - 01 Jan	SWISS	direct

Also check the deals for one-way flights from Graz to Zurich 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 Graz to Zurich in December from $288

Return flights