| Cities | Distance |
|---|---|
| Onex to Orbetello | 361.52 mi (581.81 km) |
| Onex to Oria | 698.94 mi (1,124.84 km) |
| Onex to Oristano | 451.55 mi (726.70 km) |
| Onex to Orta Nova | 584.55 mi (940.75 km) |
| Onex to Orte | 403.17 mi (648.84 km) |
| Onex to Ortona | 488.27 mi (785.79 km) |
| Onex to Orvieto | 380.86 mi (612.93 km) |
| Onex to Orzinuovi | 192.42 mi (309.67 km) |
| Onex to Osimo | 406.81 mi (654.69 km) |
| Onex to Ospitaletto | 195.99 mi (315.42 km) |
| Onex to Ostuni | 687.05 mi (1,105.70 km) |
| Onex to Ottaviano | 558.00 mi (898.01 km) |
| Onex to Ovada | 163.19 mi (262.63 km) |
| Onex to Ozieri | 413.30 mi (665.13 km) |
| Onex to Paceco | 655.51 mi (1,054.94 km) |