| Rock Island to Ickenham | 4,064.71 mi (6,541.52 km) |
| Rock Island to Ifield | 4,088.39 mi (6,579.63 km) |
| Rock Island to Ilford | 4,084.79 mi (6,573.84 km) |
| Rock Island to Ilfracombe | 3,936.05 mi (6,334.46 km) |
| Rock Island to Ilkeston | 3,986.48 mi (6,415.62 km) |
| Rock Island to Ilkley | 3,937.63 mi (6,337.00 km) |
| Rock Island to Immingham | 4,005.68 mi (6,446.52 km) |
| Rock Island to Ince-in-Makerfield | 3,921.12 mi (6,310.43 km) |
| Rock Island to Inverness | 3,749.69 mi (6,034.54 km) |
| Rock Island to Inverurie | 3,818.12 mi (6,144.67 km) |
| Rock Island to Ipswich | 4,107.60 mi (6,610.55 km) |
| Rock Island to Irlam | 3,930.56 mi (6,325.63 km) |
| Rock Island to Irthlingborough | 4,033.18 mi (6,490.77 km) |
| Rock Island to Irvine | 3,785.32 mi (6,091.88 km) |
| Rock Island to Islington | 4,078.18 mi (6,563.19 km) |
