One of the best and least expensive ways to get to Sicily from Rome is to book your flight with the low cost airline Blu Express. Maybe it was just luck, but the 4 times I have flown with them, the flights were not only cheap, but also on time!
Flights are purchased in one-way segments, which is particularly convenient when touring Sicily, since you may want to fly into Catania and out of Palermo, or vice versa. At Rome Fiumicino, Blu Express flights leave from terminal 3 (formerly known as terminal B).
Generally you will find the best airfare the further you book ahead, which is especially important around holiday periods in Italy, but if you have some flexibility you can check a month’s worth of dates to get the lowest fare. Current lowest airfares are an incredible 14.99 euro one way Rome-Catania or Rome-Palermo or return. Add an additional 5 euro for each one way segment for credit card fees, that’s still less than $30 US per one way flight.
The only drawback you may have when traveling with Blu Express is the baggage allowance, which is 5 kg (11 lbs.) for carry-on and it must be small enough to fit in the frame at the check-in desk. Checked baggage allowance is 15 kg (33 lbs.) and you will be charged 7 euro per kilo (2.2 lbs.) for excess baggage. They are quite strict, so it pays to travel light.
View flight timetables and book online at www.blu-express.com. In the upper right corner of the home page, click on the flag icon to get your preferred language, available in Italian, French and English.