| Castellana Grotte to Ifield | 1,088.71 mi (1,752.11 km) |
| Castellana Grotte to Ilford | 1,095.38 mi (1,762.84 km) |
| Castellana Grotte to Ilfracombe | 1,238.08 mi (1,992.49 km) |
| Castellana Grotte to Ilkeston | 1,200.63 mi (1,932.22 km) |
| Castellana Grotte to Ilkley | 1,257.40 mi (2,023.59 km) |
| Castellana Grotte to Immingham | 1,193.08 mi (1,920.07 km) |
| Castellana Grotte to Ince-in-Makerfield | 1,266.88 mi (2,038.85 km) |
| Castellana Grotte to Inverness | 1,486.25 mi (2,391.89 km) |
| Castellana Grotte to Inverurie | 1,426.48 mi (2,295.70 km) |
| Castellana Grotte to Ipswich | 1,080.19 mi (1,738.40 km) |
| Castellana Grotte to Irlam | 1,257.13 mi (2,023.16 km) |
| Castellana Grotte to Irthlingborough | 1,150.62 mi (1,851.74 km) |
| Castellana Grotte to Irvine | 1,418.40 mi (2,282.70 km) |
| Castellana Grotte to Islington | 1,101.44 mi (1,772.60 km) |
| Castellana Grotte to Iver | 1,114.81 mi (1,794.12 km) |
