Public Transport in Milan
Public transport in Milan is quite efficient, is relatively cheap and runs until late. However if you are staying in the centre, it's most likely that you'll only use it to get to the airport
If your hotel is not too central and you plan to use public transport on a regular basis, a good way to save money is to buy the Milan Pass, which allows you unlimited use of public transport and includes admission to the city's main attractions.
You can see all the information and buy it through the website at this link: