| Clarksburg to Ickenham | 3,645.50 mi (5,866.86 km) |
| Clarksburg to Ifield | 3,665.07 mi (5,898.36 km) |
| Clarksburg to Ilford | 3,667.23 mi (5,901.84 km) |
| Clarksburg to Ilfracombe | 3,501.94 mi (5,635.84 km) |
| Clarksburg to Ilkeston | 3,580.91 mi (5,762.91 km) |
| Clarksburg to Ilkley | 3,541.91 mi (5,700.15 km) |
| Clarksburg to Immingham | 3,610.81 mi (5,811.04 km) |
| Clarksburg to Ince-in-Makerfield | 3,518.64 mi (5,662.71 km) |
| Clarksburg to Inverness | 3,392.81 mi (5,460.19 km) |
| Clarksburg to Inverurie | 3,462.85 mi (5,572.92 km) |
| Clarksburg to Ipswich | 3,699.01 mi (5,952.99 km) |
| Clarksburg to Irlam | 3,527.44 mi (5,676.86 km) |
| Clarksburg to Irthlingborough | 3,622.16 mi (5,829.30 km) |
| Clarksburg to Irvine | 3,403.29 mi (5,477.06 km) |
| Clarksburg to Islington | 3,659.87 mi (5,890.00 km) |
