| Cayenne to Oria | 4,948.06 mi (7,963.14 km) |
| Cayenne to Oristano | 4,473.66 mi (7,199.65 km) |
| Cayenne to Orta Nova | 4,859.59 mi (7,820.75 km) |
| Cayenne to Orte | 4,709.56 mi (7,579.31 km) |
| Cayenne to Ortona | 4,807.86 mi (7,737.50 km) |
| Cayenne to Orvieto | 4,700.30 mi (7,564.41 km) |
| Cayenne to Orzinuovi | 4,646.12 mi (7,477.20 km) |
| Cayenne to Osimo | 4,780.23 mi (7,693.04 km) |
| Cayenne to Ospitaletto | 4,655.74 mi (7,492.69 km) |
| Cayenne to Ostuni | 4,948.15 mi (7,963.28 km) |
| Cayenne to Ottaviano | 4,790.02 mi (7,708.78 km) |
| Cayenne to Ovada | 4,570.44 mi (7,355.41 km) |
| Cayenne to Ozieri | 4,507.25 mi (7,253.72 km) |
| Cayenne to Paceco | 4,648.37 mi (7,480.83 km) |
| Cayenne to Pachino | 4,769.27 mi (7,675.41 km) |
