How to reach the historic center of Catania from the airport
Take the ALIBUS. Leaving the airport, the ALIBUS stop is on your left, on the far left of the airport. The ticket costs € 4 and can be purchased on board. For timetables and routes, consult the ALIBUS page on the Catania Metropolitan Transport Company website here (click on any image for viewing the update timetable).
The cost to reach the center with a taxi stationed at the airport should be 20-25 €, but it is advisable to make sure before boarding to avoid surprises.
A good company that does not keep cars stationed at the airport, but must be called by phone, guarantees a rate of € 18-22 depending on the time and destination in the city: RadioTaxi: www.radiotaxicatania.org, Tel: +39-095-8833 or +39-095-330966 (they should be able to answer in english).
How to reach the Department of Physics and Astronomy from Catania centre
From the centre of Catania the DFA can be reached in two ways:
From Piazza Stesicoro
From Piazza Stesicoro take the underground (Metropolitana di Catania). The ticket costs € 1 and have to be purchased outside the station in one of the "Tabaccheria" around via Etnea. From Stesicoro take the direction to "Nesima" and get off at "Milo" stop. At the exit from Milo station take the shuttle to the university campus. The shuttle is free of charge. The location of the stop near the DFA are shown in the map below. Detailed new about tickets and timetable of the Metropolitana can be found on this website (unfortunately only in Italian).
From Via Etnea
Along the right side (having the Dome on your back) of Via Etnea, between Piazza Stesicoro and Piazza Roma, take the Bus Rapid Transport (BRT) at one of its stops. The ticket costs € 1 and can be purchase either in a "Tabaccheria" or online with the dropticket app. The BRT will bring you directly to the entrance of the university campus, 200 m from the entrance of the DFA. See the map below for details.