If you are travelling by plane, the airport Graz Thalerhof (GRZ) is the nearest one, only a 10km drive away from the location. You can also land in Vienna and get to Graz via bus or train.
If you are coming to Graz by train, you arrive at the Graz Central Stadion (Hauptbahnhof). Then take the tram lines 1, 3, 6 or 7 to Hauptplatz and switch to line 4 until you reach the stop Stadthalle.
When travelling by bus, you can take the FlixBus from many destinations. The closest stop to the venue in Graz is Girardigasse. After a short walk you reach the Jakominiplatz and then take the tram line 4 until the stop Stadthalle.
If you are coming by car, you can park it at the parking lot Fröhlichgasse (Fröhlichgasse 39-45), only a few minutes to the venue.