See the airport map to locate the departure points at the airport.
Vienna Airport Lines (Postbus) connects Vienna Airport with the main Vienna transport hubs.
The 3 Vienna Airport Lines routes serve all of Vienna's underground railway lines and also "Wien West" and "Wien Meidling" railway stations.
Buses to the city centre (Morzinplatz/Schwedenplatz) run 24 hours a day, journey time just 20 minutes.
The table, available under following link, provides a summary of the main regional bus connections.
Regional bus connections on Vienna Airport website
Buses from Vienna Airport to destinations in Slovakia, Hungary and the Czech Republic are summarised in a table, which is available under following link.
International bus connections on Vienna Airport website