| Wheat Ridge to Ickenham | 4,674.51 mi (7,522.89 km) |
| Wheat Ridge to Ifield | 4,700.78 mi (7,565.17 km) |
| Wheat Ridge to Ilford | 4,692.94 mi (7,552.55 km) |
| Wheat Ridge to Ilfracombe | 4,559.46 mi (7,337.74 km) |
| Wheat Ridge to Ilkeston | 4,587.71 mi (7,383.20 km) |
| Wheat Ridge to Ilkley | 4,532.52 mi (7,294.39 km) |
| Wheat Ridge to Immingham | 4,598.37 mi (7,400.36 km) |
| Wheat Ridge to Ince-in-Makerfield | 4,521.47 mi (7,276.61 km) |
| Wheat Ridge to Inverness | 4,319.71 mi (6,951.90 km) |
| Wheat Ridge to Inverurie | 4,385.04 mi (7,057.05 km) |
| Wheat Ridge to Ipswich | 4,708.48 mi (7,577.57 km) |
| Wheat Ridge to Irlam | 4,531.20 mi (7,292.25 km) |
| Wheat Ridge to Irthlingborough | 4,637.48 mi (7,463.31 km) |
| Wheat Ridge to Irvine | 4,373.54 mi (7,038.53 km) |
| Wheat Ridge to Islington | 4,687.01 mi (7,543.01 km) |
