These handy travel bottles
are TSA approved
Direct flights from many European cities, the UK, Russia, Egypt, the Middle East and Turkey.
Catania is also a hub for rail and bus service to the rest of Italy.
City bus service connects the entire city. Tickets available at tobacco shops. Uber does not operate in Catania, but taxis are widely available. Rental car may be desirable if you are making daytrips around Sicily.
Private tours are easily booked online or through your hotel. There is also a train that offers transport, but the website is in Italian.