AirHint found the following cheapest return flights from Zurich (ZRH) to Graz (GRZ) in September 2026 (see full year).
Return flights
| 03 Sep - 07 Sep | SWISS | direct | |
| 26 Sep - 03 Oct | SWISS | direct | |
| 22 Sep - 29 Sep | SWISS | direct | |
| 18 Sep - 21 Sep | SWISS | direct | |
| 02 Sep - 06 Sep | SWISS | ||
| 06 Sep - 12 Sep | Air Serbia |
Also check the deals for one-way flights from Zurich to Graz in September.
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