| Clovis to Orbetello | 6,148.10 mi (9,894.41 km) |
| Clovis to Oria | 6,448.70 mi (10,378.18 km) |
| Clovis to Oristano | 6,201.78 mi (9,980.80 km) |
| Clovis to Orta Nova | 6,345.39 mi (10,211.92 km) |
| Clovis to Orte | 6,182.82 mi (9,950.29 km) |
| Clovis to Ortona | 6,249.08 mi (10,056.92 km) |
| Clovis to Orvieto | 6,160.15 mi (9,913.80 km) |
| Clovis to Orzinuovi | 5,947.32 mi (9,571.29 km) |
| Clovis to Osimo | 6,158.38 mi (9,910.96 km) |
| Clovis to Ospitaletto | 5,943.07 mi (9,564.45 km) |
| Clovis to Ostuni | 6,433.75 mi (10,354.12 km) |
| Clovis to Ottaviano | 6,336.19 mi (10,197.12 km) |
| Clovis to Ovada | 5,949.21 mi (9,574.32 km) |
| Clovis to Ozieri | 6,178.82 mi (9,943.85 km) |
| Clovis to Paceco | 6,436.87 mi (10,359.15 km) |
