| Waltham to Ickenham | 3,263.11 mi (5,251.47 km) |
| Waltham to Ifield | 3,282.48 mi (5,282.64 km) |
| Waltham to Ilford | 3,284.91 mi (5,286.55 km) |
| Waltham to Ilfracombe | 3,119.04 mi (5,019.61 km) |
| Waltham to Ilkeston | 3,199.38 mi (5,148.91 km) |
| Waltham to Ilkley | 3,161.17 mi (5,087.41 km) |
| Waltham to Immingham | 3,230.04 mi (5,198.24 km) |
| Waltham to Ince-in-Makerfield | 3,137.42 mi (5,049.19 km) |
| Waltham to Inverness | 3,016.44 mi (4,854.48 km) |
| Waltham to Inverurie | 3,086.49 mi (4,967.22 km) |
| Waltham to Ipswich | 3,317.17 mi (5,338.46 km) |
| Waltham to Irlam | 3,146.16 mi (5,063.25 km) |
| Waltham to Irthlingborough | 3,240.24 mi (5,214.66 km) |
| Waltham to Irvine | 3,024.03 mi (4,866.71 km) |
| Waltham to Islington | 3,277.52 mi (5,274.66 km) |
