| Williamstown to Ickenham | 3,531.55 mi (5,683.48 km) |
| Williamstown to Ifield | 3,550.69 mi (5,714.28 km) |
| Williamstown to Ilford | 3,553.41 mi (5,718.66 km) |
| Williamstown to Ilfracombe | 3,386.80 mi (5,450.53 km) |
| Williamstown to Ilkeston | 3,468.44 mi (5,581.91 km) |
| Williamstown to Ilkley | 3,430.53 mi (5,520.91 km) |
| Williamstown to Immingham | 3,499.39 mi (5,631.72 km) |
| Williamstown to Ince-in-Makerfield | 3,406.61 mi (5,482.41 km) |
| Williamstown to Inverness | 3,286.01 mi (5,288.32 km) |
| Williamstown to Inverurie | 3,356.06 mi (5,401.06 km) |
| Williamstown to Ipswich | 3,586.03 mi (5,771.15 km) |
| Williamstown to Irlam | 3,415.32 mi (5,496.43 km) |
| Williamstown to Irthlingborough | 3,509.06 mi (5,647.29 km) |
| Williamstown to Irvine | 3,293.67 mi (5,300.64 km) |
| Williamstown to Islington | 3,545.99 mi (5,706.72 km) |
