| Seaside to Ickenham | 5,391.07 mi (8,676.09 km) |
| Seaside to Ifield | 5,419.82 mi (8,722.36 km) |
| Seaside to Ilford | 5,407.12 mi (8,701.92 km) |
| Seaside to Ilfracombe | 5,294.66 mi (8,520.93 km) |
| Seaside to Ilkeston | 5,296.21 mi (8,523.43 km) |
| Seaside to Ilkley | 5,234.99 mi (8,424.90 km) |
| Seaside to Immingham | 5,296.61 mi (8,524.07 km) |
| Seaside to Ince-in-Makerfield | 5,230.57 mi (8,417.79 km) |
| Seaside to Inverness | 4,999.26 mi (8,045.53 km) |
| Seaside to Inverurie | 5,059.20 mi (8,141.99 km) |
| Seaside to Ipswich | 5,413.69 mi (8,712.49 km) |
| Seaside to Irlam | 5,240.38 mi (8,433.57 km) |
| Seaside to Irthlingborough | 5,348.43 mi (8,607.46 km) |
| Seaside to Irvine | 5,072.37 mi (8,163.19 km) |
| Seaside to Islington | 5,402.15 mi (8,693.92 km) |
