Palermo downtown is closed today Sunday 3 October for an official visit of the Pope Benedict XVI.
Buses into Palermo city centre are free and a map of where you can pick up these buses is here Palermo Pope.
Make sure you get a standing position along Via della Liberta or Via Roma where you should get a glimpse of the Pope in his Popemobile. See the Pope’s route here Pope Palermo.
Click here for further details about Palermo airport PMO .