AirHint found the following cheapest return flights from Zurich (ZRH) to Graz (GRZ) in April 2026 (see full year).

Return flights

29 Apr - 06 May	Austrian Airlines	direct
21 Apr - 25 Apr	Austrian Airlines
16 Apr - 18 Apr	Austrian Airlines
10 Apr - 15 Apr	SWISS	direct
26 Apr - 02 May	Austrian Airlines
16 Apr - 19 Apr	Austrian Airlines
13 Apr - 16 Apr	SunExpress
06 Apr - 14 Apr	SunExpress
23 Apr - 26 Apr	Austrian Airlines
24 Apr - 26 Apr	easyJet
29 Apr - 03 May	SWISS
13 Apr - 20 Apr	SunExpress
17 Apr - 19 Apr	easyJet
30 Apr - 04 May	SWISS
30 Apr - 04 May	SWISS	direct

Also check the deals for one-way flights from Zurich to Graz in April.

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 April from $251

Return flights