The cheapest way in. Nothing listed is quicker.
Regional train from Fontanarossa station
Regionale · TrenitaliaPickup, hours & luggage
Boards at. Catania Aeroporto Fontanarossa station, 600 m from the terminal on the signed footpath or by the 524S shuttle from outside arrivals
EUR 2.20 for the train, children the same. The shuttle from the terminal to the station is EUR 1.40 when sold with the train ticket as "Catania Aeroporto Fontanarossa Bus", or EUR 1.00 bought on its own; walk the 600 m footpath and pay nothing extra.
Luggage. An ordinary regional train with racks; no luggage charge.
Hours. Irregular: one or two an hour, with gaps of up to 90 minutes in the afternoon, and a few early trains that run only on weekdays or Saturdays. The last train into town is 20:28 every day.