| Opelika to Ickenham | 4,286.08 mi (6,897.78 km) |
| Opelika to Ifield | 4,305.47 mi (6,928.99 km) |
| Opelika to Ilford | 4,307.86 mi (6,932.83 km) |
| Opelika to Ilfracombe | 4,141.92 mi (6,665.77 km) |
| Opelika to Ilkeston | 4,221.82 mi (6,794.37 km) |
| Opelika to Ilkley | 4,182.83 mi (6,731.61 km) |
| Opelika to Immingham | 4,251.73 mi (6,842.50 km) |
| Opelika to Ince-in-Makerfield | 4,159.58 mi (6,694.20 km) |
| Opelika to Inverness | 4,031.93 mi (6,488.76 km) |
| Opelika to Inverurie | 4,101.94 mi (6,601.44 km) |
| Opelika to Ipswich | 4,339.86 mi (6,984.34 km) |
| Opelika to Irlam | 4,168.38 mi (6,708.36 km) |
| Opelika to Irthlingborough | 4,262.98 mi (6,860.61 km) |
| Opelika to Irvine | 4,043.84 mi (6,507.93 km) |
| Opelika to Islington | 4,300.48 mi (6,920.95 km) |
