| Tucson Mountains to Ickenham | 5,286.90 mi (8,508.44 km) |
| Tucson Mountains to Ifield | 5,312.86 mi (8,550.23 km) |
| Tucson Mountains to Ilford | 5,305.55 mi (8,538.45 km) |
| Tucson Mountains to Ilfracombe | 5,169.76 mi (8,319.92 km) |
| Tucson Mountains to Ilkeston | 5,200.99 mi (8,370.18 km) |
| Tucson Mountains to Ilkley | 5,146.36 mi (8,282.26 km) |
| Tucson Mountains to Immingham | 5,212.44 mi (8,388.61 km) |
| Tucson Mountains to Ince-in-Makerfield | 5,134.78 mi (8,263.64 km) |
| Tucson Mountains to Inverness | 4,934.91 mi (7,941.97 km) |
| Tucson Mountains to Inverurie | 5,000.37 mi (8,047.32 km) |
| Tucson Mountains to Ipswich | 5,321.90 mi (8,564.77 km) |
| Tucson Mountains to Irlam | 5,144.49 mi (8,279.25 km) |
| Tucson Mountains to Irthlingborough | 5,250.48 mi (8,449.83 km) |
| Tucson Mountains to Irvine | 4,987.79 mi (8,027.07 km) |
| Tucson Mountains to Islington | 5,299.53 mi (8,528.77 km) |
