The city of Melbourne is served by a number of public transport systems, however there is no train currently linking Melbourne Airport to the CBD.
However, the airport does have a bus transfer service that runs directly from the CBD to the airport – this service is known as the Skybus.
Skybus Melbourne, Airport Bus Timetable / Schedule & Ticket
This privately owned and operated company offers transfers to the Melbourne airport 24 hours, 7 days a week. This super-fast shuttle takes only 20 minutes from Southern Cross Station to reach the international airport. However, the transfer times may vary during peak hours.
A recent survey also claims that this airport shuttle service serves more than 2 million passengers every year. The SkyBus shuttle operates every 10 minutes from 6am to 11.30pm and slightly less frequently after midnight.