| Groves to Ickenham | 4,767.35 mi (7,672.31 km) |
| Groves to Ifield | 4,788.36 mi (7,706.13 km) |
| Groves to Ilford | 4,788.60 mi (7,706.50 km) |
| Groves to Ilfracombe | 4,628.09 mi (7,448.19 km) |
| Groves to Ilkeston | 4,697.64 mi (7,560.12 km) |
| Groves to Ilkley | 4,654.67 mi (7,490.97 km) |
| Groves to Immingham | 4,723.52 mi (7,601.76 km) |
| Groves to Ince-in-Makerfield | 4,633.95 mi (7,457.62 km) |
| Groves to Inverness | 4,487.62 mi (7,222.13 km) |
| Groves to Inverurie | 4,557.23 mi (7,334.15 km) |
| Groves to Ipswich | 4,817.32 mi (7,752.72 km) |
| Groves to Irlam | 4,643.03 mi (7,472.24 km) |
| Groves to Irthlingborough | 4,741.05 mi (7,629.99 km) |
| Groves to Irvine | 4,509.73 mi (7,257.71 km) |
| Groves to Islington | 4,781.47 mi (7,695.03 km) |
