To go to Milos there are direct ferries from the port of Piraeus and with airplane from El.Venizelos airport at Spata. Milos is also connected by ferry to other islands of Cyclades, including Sifnos, Serifos, Folegandros and Santorini. From the small port of Pollonia in Milos, there is a local ferry to Kimolos 3 or 4 times a day.
Ship shedules: www.openseas.gr
Athens International Airport: www.aia.gr