| Downey to Ickenham | 5,430.78 mi (8,740.00 km) |
| Downey to Ifield | 5,458.49 mi (8,784.59 km) |
| Downey to Ilford | 5,447.95 mi (8,767.63 km) |
| Downey to Ilfracombe | 5,325.48 mi (8,570.53 km) |
| Downey to Ilkeston | 5,339.23 mi (8,592.66 km) |
| Downey to Ilkley | 5,280.46 mi (8,498.08 km) |
| Downey to Immingham | 5,344.13 mi (8,600.55 km) |
| Downey to Ince-in-Makerfield | 5,273.11 mi (8,486.26 km) |
| Downey to Inverness | 5,053.67 mi (8,133.09 km) |
| Downey to Inverurie | 5,116.06 mi (8,233.51 km) |
| Downey to Ipswich | 5,458.54 mi (8,784.68 km) |
| Downey to Irlam | 5,282.91 mi (8,502.03 km) |
| Downey to Irthlingborough | 5,390.53 mi (8,675.21 km) |
| Downey to Irvine | 5,118.87 mi (8,238.03 km) |
| Downey to Islington | 5,442.53 mi (8,758.91 km) |
