| Castelleone to Ifield | 609.61 mi (981.08 km) |
| Castelleone to Ilford | 618.67 mi (995.65 km) |
| Castelleone to Ilfracombe | 756.21 mi (1,217.00 km) |
| Castelleone to Ilkeston | 727.56 mi (1,170.90 km) |
| Castelleone to Ilkley | 788.20 mi (1,268.48 km) |
| Castelleone to Immingham | 727.39 mi (1,170.63 km) |
| Castelleone to Ince-in-Makerfield | 793.54 mi (1,277.09 km) |
| Castelleone to Inverness | 1,031.10 mi (1,659.40 km) |
| Castelleone to Inverurie | 977.00 mi (1,572.33 km) |
| Castelleone to Ipswich | 609.49 mi (980.88 km) |
| Castelleone to Irlam | 783.74 mi (1,261.31 km) |
| Castelleone to Irthlingborough | 675.98 mi (1,087.88 km) |
| Castelleone to Irvine | 950.88 mi (1,530.29 km) |
| Castelleone to Islington | 624.25 mi (1,004.63 km) |
| Castelleone to Iver | 636.71 mi (1,024.69 km) |
