| Willow Grove to Ickenham | 3,517.01 mi (5,660.09 km) |
| Willow Grove to Ifield | 3,536.39 mi (5,691.27 km) |
| Willow Grove to Ilford | 3,538.80 mi (5,695.15 km) |
| Willow Grove to Ilfracombe | 3,372.93 mi (5,428.21 km) |
| Willow Grove to Ilkeston | 3,453.12 mi (5,557.25 km) |
| Willow Grove to Ilkley | 3,414.67 mi (5,495.37 km) |
| Willow Grove to Immingham | 3,483.55 mi (5,606.22 km) |
| Willow Grove to Ince-in-Makerfield | 3,391.07 mi (5,457.39 km) |
| Willow Grove to Inverness | 3,268.09 mi (5,259.48 km) |
| Willow Grove to Inverurie | 3,338.14 mi (5,372.22 km) |
| Willow Grove to Ipswich | 3,570.98 mi (5,746.94 km) |
| Willow Grove to Irlam | 3,399.82 mi (5,471.48 km) |
| Willow Grove to Irthlingborough | 3,494.07 mi (5,623.16 km) |
| Willow Grove to Irvine | 3,276.96 mi (5,273.76 km) |
| Willow Grove to Islington | 3,531.42 mi (5,683.27 km) |
