There is a new train connection since the beginning of December between Cluj Napoca and Vienna. The Transilvania EuroCity circulates via Budapest, the train is run by MÁV-START (the Hungarian railway company) and CFR Calatori (the Romanian railway company).
The train runs every day, leaves Cluj Napoca at 0730, arrives at Budapest-Keleti at 1420 and leaves for Vienna at 1440, where it arrives at 1721. It leaves Vienna at 1042, arrives in Budapest Keleti at 1319 and leaves at 1340. It stops in Oradea, and arrives in Cluj Napoca at 2225 local time.