| Forest to Ifield | 198.32 mi (319.17 km) |
| Forest to Ilford | 190.62 mi (306.77 km) |
| Forest to Ilfracombe | 367.92 mi (592.10 km) |
| Forest to Ilkeston | 282.61 mi (454.82 km) |
| Forest to Ilkley | 336.65 mi (541.78 km) |
| Forest to Immingham | 272.73 mi (438.92 km) |
| Forest to Ince-in-Makerfield | 348.42 mi (560.74 km) |
| Forest to Inverness | 575.07 mi (925.48 km) |
| Forest to Inverurie | 522.53 mi (840.94 km) |
| Forest to Ipswich | 161.37 mi (259.70 km) |
| Forest to Irlam | 338.84 mi (545.31 km) |
| Forest to Irthlingborough | 236.33 mi (380.34 km) |
| Forest to Irvine | 497.83 mi (801.18 km) |
| Forest to Islington | 198.27 mi (319.09 km) |
| Forest to Iver | 214.93 mi (345.89 km) |
