| Western Springs to Ickenham | 3,947.56 mi (6,352.99 km) |
| Western Springs to Ifield | 3,970.75 mi (6,390.31 km) |
| Western Springs to Ilford | 3,967.89 mi (6,385.71 km) |
| Western Springs to Ilfracombe | 3,816.76 mi (6,142.48 km) |
| Western Springs to Ilkeston | 3,870.97 mi (6,229.73 km) |
| Western Springs to Ilkley | 3,823.33 mi (6,153.06 km) |
| Western Springs to Immingham | 3,891.63 mi (6,262.98 km) |
| Western Springs to Ince-in-Makerfield | 3,805.89 mi (6,124.99 km) |
| Western Springs to Inverness | 3,640.26 mi (5,858.44 km) |
| Western Springs to Inverurie | 3,709.08 mi (5,969.19 km) |
| Western Springs to Ipswich | 3,991.92 mi (6,424.38 km) |
| Western Springs to Irlam | 3,815.27 mi (6,140.08 km) |
| Western Springs to Irthlingborough | 3,917.04 mi (6,303.86 km) |
| Western Springs to Irvine | 3,672.53 mi (5,910.37 km) |
| Western Springs to Islington | 3,961.17 mi (6,374.88 km) |
