| Caledonia to Orbetello | 4,705.44 mi (7,572.67 km) |
| Caledonia to Oria | 5,045.12 mi (8,119.33 km) |
| Caledonia to Oristano | 4,707.48 mi (7,575.96 km) |
| Caledonia to Orta Nova | 4,932.04 mi (7,937.34 km) |
| Caledonia to Orte | 4,751.06 mi (7,646.10 km) |
| Caledonia to Ortona | 4,834.94 mi (7,781.08 km) |
| Caledonia to Orvieto | 4,728.93 mi (7,610.48 km) |
| Caledonia to Orzinuovi | 4,529.66 mi (7,289.79 km) |
| Caledonia to Osimo | 4,749.14 mi (7,643.00 km) |
| Caledonia to Ospitaletto | 4,528.62 mi (7,288.11 km) |
| Caledonia to Ostuni | 5,032.33 mi (8,098.75 km) |
| Caledonia to Ottaviano | 4,905.27 mi (7,894.27 km) |
| Caledonia to Ovada | 4,510.85 mi (7,259.52 km) |
| Caledonia to Ozieri | 4,695.52 mi (7,556.71 km) |
| Caledonia to Paceco | 4,956.13 mi (7,976.12 km) |
