| Rockville to Ickenham | 3,647.34 mi (5,869.82 km) |
| Rockville to Ifield | 3,666.82 mi (5,901.17 km) |
| Rockville to Ilford | 3,669.09 mi (5,904.83 km) |
| Rockville to Ilfracombe | 3,503.52 mi (5,638.38 km) |
| Rockville to Ilkeston | 3,583.04 mi (5,766.34 km) |
| Rockville to Ilkley | 3,544.25 mi (5,703.91 km) |
| Rockville to Immingham | 3,613.14 mi (5,814.79 km) |
| Rockville to Ince-in-Makerfield | 3,520.85 mi (5,666.27 km) |
| Rockville to Inverness | 3,395.93 mi (5,465.22 km) |
| Rockville to Inverurie | 3,465.98 mi (5,577.95 km) |
| Rockville to Ipswich | 3,701.05 mi (5,956.26 km) |
| Rockville to Irlam | 3,529.64 mi (5,680.40 km) |
| Rockville to Irthlingborough | 3,624.16 mi (5,832.53 km) |
| Rockville to Irvine | 3,405.94 mi (5,481.32 km) |
| Rockville to Islington | 3,661.72 mi (5,892.97 km) |
