Bus stop is next to the Etele tér square, front of main building of train station Budapest-Kelenföld. Yellow buses are departing/arriving from/to the the public transport platforms, platform A3.
When you are traveling by metro, get off on last stop of green metro line Kelenföld, exit A – Etele tér. RegioJet bus stop is 50 m left from exit from metro.
Check detailed plan of Etele tér square with informations about public transport stops.
Click here for more information about Budapest public trasport.