| Castalla to Ifield | 865.80 mi (1,393.38 km) |
| Castalla to Ilford | 896.25 mi (1,442.38 km) |
| Castalla to Ilfracombe | 887.30 mi (1,427.96 km) |
| Castalla to Ilkeston | 993.63 mi (1,599.10 km) |
| Castalla to Ilkley | 1,060.47 mi (1,706.67 km) |
| Castalla to Immingham | 1,037.81 mi (1,670.19 km) |
| Castalla to Ince-in-Makerfield | 1,036.53 mi (1,668.13 km) |
| Castalla to Inverness | 1,314.41 mi (2,115.33 km) |
| Castalla to Inverurie | 1,293.21 mi (2,081.22 km) |
| Castalla to Ipswich | 934.32 mi (1,503.65 km) |
| Castalla to Irlam | 1,029.27 mi (1,656.45 km) |
| Castalla to Irthlingborough | 948.47 mi (1,526.41 km) |
| Castalla to Irvine | 1,190.59 mi (1,916.06 km) |
| Castalla to Islington | 894.99 mi (1,440.35 km) |
| Castalla to Iver | 893.02 mi (1,437.17 km) |
