| Inkster to Orbetello | 4,541.62 mi (7,309.04 km) |
| Inkster to Oria | 4,886.19 mi (7,863.56 km) |
| Inkster to Oristano | 4,533.73 mi (7,296.34 km) |
| Inkster to Orta Nova | 4,772.12 mi (7,679.99 km) |
| Inkster to Orte | 4,589.00 mi (7,385.27 km) |
| Inkster to Ortona | 4,675.56 mi (7,524.59 km) |
| Inkster to Orvieto | 4,567.12 mi (7,350.07 km) |
| Inkster to Orzinuovi | 4,371.85 mi (7,035.82 km) |
| Inkster to Osimo | 4,591.29 mi (7,388.97 km) |
| Inkster to Ospitaletto | 4,371.43 mi (7,035.13 km) |
| Inkster to Ostuni | 4,873.88 mi (7,843.75 km) |
| Inkster to Ottaviano | 4,742.31 mi (7,632.01 km) |
| Inkster to Ovada | 4,349.22 mi (6,999.39 km) |
| Inkster to Ozieri | 4,523.98 mi (7,280.64 km) |
| Inkster to Paceco | 4,783.54 mi (7,698.37 km) |
