| Tonbridge to Ickenham | 39.92 mi (64.24 km) |
| Tonbridge to Ifield | 21.60 mi (34.75 km) |
| Tonbridge to Ilford | 26.12 mi (42.03 km) |
| Tonbridge to Ilfracombe | 190.30 mi (306.25 km) |
| Tonbridge to Ilkeston | 139.73 mi (224.87 km) |
| Tonbridge to Ilkley | 207.95 mi (334.66 km) |
| Tonbridge to Immingham | 168.17 mi (270.64 km) |
| Tonbridge to Ince-in-Makerfield | 202.17 mi (325.36 km) |
| Tonbridge to Inverness | 469.96 mi (756.32 km) |
| Tonbridge to Inverurie | 433.57 mi (697.76 km) |
| Tonbridge to Ipswich | 70.42 mi (113.32 km) |
| Tonbridge to Irlam | 192.52 mi (309.83 km) |
| Tonbridge to Irthlingborough | 86.57 mi (139.32 km) |
| Tonbridge to Irvine | 366.79 mi (590.29 km) |
| Tonbridge to Islington | 28.92 mi (46.55 km) |
