There are three parking terminals at Palermo airport. P1 and P3 are farther from the airport entrance and have free shuttles that will bring you right to the doors.

P1 rates
Up to 15 min — 0,00 Euro
Up to 12 h — 8,00 Euro
12-24 h — 13,00 Euro
Up to two days — 25,00 Euro
Up to three days — 35,00 Euro
Up to four days — 45,00 Euro
Up to five days — 55,00 Euro
Up to six days — 65,00 Euro
Special rate until the 7th day — 65,00 Euro
10,00 Euro will be added to the 7th-day rate for each additional day

P2 rates (short-term parking)
Up to 15 min — 0,00 Euro
Up to 1 h — 3,00 Euro
1-2 h — 6,00 Euro
2-3 h — 8,00 Euro
3-12 h – 10,00 Euro
12-18 h — 16,00 Euro
18-24 h — 18,00 Euro
Every successive 12 hour or fraction – 9,00 Euro

P3 rates
Up to 15 min — 0,00 Euro
Up to 12 h — 8,00 Euro
12-24 h — 13,00 Euro
Up to two days — 25,00 Euro
Up to three days — 35,00 Euro
Up to four days — 45,00 Euro
Up to five days — 55,00 Euro
Up to six days — 65,00 Euro
Special rate until the 7th day — 65,00 Euro
10,00 Euro will be added to the 7th-day rate for each additional day