When travelling from the Airport, you can take a public transport bus which depart every few minutes from outside both terminals. Line 100 to Zličín (Metro B-line), line 119 to Nádraží Veleslavín (Metro A-line) or line 191 to Anděl (Metro B-line). If you want to travel to the main railway station, you can take the special Airport Express bus. Or you can take a taxi from the stand right in front of Terminals.