| Imperial to Ickenham | 5,409.34 mi (8,705.50 km) |
| Imperial to Ifield | 5,436.37 mi (8,748.99 km) |
| Imperial to Ilford | 5,427.15 mi (8,734.15 km) |
| Imperial to Ilfracombe | 5,299.01 mi (8,527.94 km) |
| Imperial to Ilkeston | 5,320.00 mi (8,561.71 km) |
| Imperial to Ilkley | 5,262.85 mi (8,469.73 km) |
| Imperial to Immingham | 5,327.59 mi (8,573.93 km) |
| Imperial to Ince-in-Makerfield | 5,253.76 mi (8,455.10 km) |
| Imperial to Inverness | 5,042.00 mi (8,114.32 km) |
| Imperial to Inverurie | 5,105.73 mi (8,216.87 km) |
| Imperial to Ipswich | 5,440.12 mi (8,755.03 km) |
| Imperial to Irlam | 5,263.53 mi (8,470.83 km) |
| Imperial to Irthlingborough | 5,370.62 mi (8,643.17 km) |
| Imperial to Irvine | 5,102.28 mi (8,211.32 km) |
| Imperial to Islington | 5,421.47 mi (8,725.02 km) |
