| Tourlaville to Oria | 1,125.22 mi (1,810.87 km) |
| Tourlaville to Oristano | 835.81 mi (1,345.11 km) |
| Tourlaville to Orta Nova | 1,011.63 mi (1,628.06 km) |
| Tourlaville to Orte | 831.23 mi (1,337.73 km) |
| Tourlaville to Ortona | 914.72 mi (1,472.10 km) |
| Tourlaville to Orvieto | 808.93 mi (1,301.85 km) |
| Tourlaville to Orzinuovi | 610.96 mi (983.24 km) |
| Tourlaville to Osimo | 830.25 mi (1,336.16 km) |
| Tourlaville to Ospitaletto | 610.97 mi (983.27 km) |
| Tourlaville to Ostuni | 1,112.80 mi (1,790.88 km) |
| Tourlaville to Ottaviano | 985.97 mi (1,586.77 km) |
| Tourlaville to Ovada | 591.09 mi (951.26 km) |
| Tourlaville to Ozieri | 809.40 mi (1,302.61 km) |
| Tourlaville to Paceco | 1,066.46 mi (1,716.31 km) |
| Tourlaville to Pachino | 1,220.78 mi (1,964.66 km) |
