There are great fares from Milan(Italy) to Melbourne(Australia)! You can fly on Etihad Airways and Virgin Australia via Abu Dhabi and Perth to Melbourne. Return there is only one stop at Abu Dhabi.
Milan-Melbourne: MXP-MEL 409€
If you’d like to depart from Germany, e.g. Berlin there are plenty of cheap possibilities to get to Milan: Ryanair, EasyJet, Trains etc.
For Example Berlin-Schönefeld to Milan-Bergamo: SXF-BGY 24€
A Trip from Berlin to Melbourne may be: