| Sierning to Ifield | 682.87 mi (1,098.98 km) |
| Sierning to Ilford | 677.81 mi (1,090.84 km) |
| Sierning to Ilfracombe | 850.80 mi (1,369.24 km) |
| Sierning to Ilkeston | 763.93 mi (1,229.42 km) |
| Sierning to Ilkley | 808.12 mi (1,300.54 km) |
| Sierning to Immingham | 739.61 mi (1,190.29 km) |
| Sierning to Ince-in-Makerfield | 827.59 mi (1,331.87 km) |
| Sierning to Inverness | 1,006.79 mi (1,620.28 km) |
| Sierning to Inverurie | 942.14 mi (1,516.23 km) |
| Sierning to Ipswich | 644.90 mi (1,037.87 km) |
| Sierning to Irlam | 818.48 mi (1,317.21 km) |
| Sierning to Irthlingborough | 721.69 mi (1,161.45 km) |
| Sierning to Irvine | 959.58 mi (1,544.30 km) |
| Sierning to Islington | 685.39 mi (1,103.02 km) |
| Sierning to Iver | 701.80 mi (1,129.44 km) |
