| Cormeilles-en-Parisis to Oria | 954.25 mi (1,535.72 km) |
| Cormeilles-en-Parisis to Oristano | 700.77 mi (1,127.78 km) |
| Cormeilles-en-Parisis to Orta Nova | 841.80 mi (1,354.74 km) |
| Cormeilles-en-Parisis to Orte | 665.23 mi (1,070.58 km) |
| Cormeilles-en-Parisis to Ortona | 744.43 mi (1,198.04 km) |
| Cormeilles-en-Parisis to Orvieto | 642.67 mi (1,034.27 km) |
| Cormeilles-en-Parisis to Orzinuovi | 438.74 mi (706.08 km) |
| Cormeilles-en-Parisis to Osimo | 658.23 mi (1,059.32 km) |
| Cormeilles-en-Parisis to Ospitaletto | 437.86 mi (704.67 km) |
| Cormeilles-en-Parisis to Ostuni | 941.40 mi (1,515.04 km) |
| Cormeilles-en-Parisis to Ottaviano | 820.24 mi (1,320.05 km) |
| Cormeilles-en-Parisis to Ovada | 427.03 mi (687.24 km) |
| Cormeilles-en-Parisis to Ozieri | 668.13 mi (1,075.25 km) |
| Cormeilles-en-Parisis to Paceco | 917.85 mi (1,477.13 km) |
| Cormeilles-en-Parisis to Pachino | 1,066.54 mi (1,716.43 km) |
