| Hazebrouck to Oria | 1,011.87 mi (1,628.45 km) |
| Hazebrouck to Oristano | 802.62 mi (1,291.69 km) |
| Hazebrouck to Orta Nova | 903.27 mi (1,453.67 km) |
| Hazebrouck to Orte | 736.70 mi (1,185.60 km) |
| Hazebrouck to Ortona | 805.96 mi (1,297.06 km) |
| Hazebrouck to Orvieto | 714.03 mi (1,149.13 km) |
| Hazebrouck to Orzinuovi | 501.46 mi (807.01 km) |
| Hazebrouck to Osimo | 716.42 mi (1,152.96 km) |
| Hazebrouck to Ospitaletto | 497.76 mi (801.07 km) |
| Hazebrouck to Ostuni | 997.98 mi (1,606.09 km) |
| Hazebrouck to Ottaviano | 890.13 mi (1,432.53 km) |
| Hazebrouck to Ovada | 507.07 mi (816.05 km) |
| Hazebrouck to Ozieri | 766.29 mi (1,233.23 km) |
| Hazebrouck to Paceco | 1,007.69 mi (1,621.71 km) |
| Hazebrouck to Pachino | 1,149.82 mi (1,850.45 km) |
