| Morsang-sur-Orge to Oria | 937.33 mi (1,508.49 km) |
| Morsang-sur-Orge to Oristano | 678.73 mi (1,092.31 km) |
| Morsang-sur-Orge to Orta Nova | 824.44 mi (1,326.81 km) |
| Morsang-sur-Orge to Orte | 646.71 mi (1,040.78 km) |
| Morsang-sur-Orge to Ortona | 727.20 mi (1,170.32 km) |
| Morsang-sur-Orge to Orvieto | 624.20 mi (1,004.55 km) |
| Morsang-sur-Orge to Orzinuovi | 422.15 mi (679.38 km) |
| Morsang-sur-Orge to Osimo | 641.65 mi (1,032.64 km) |
| Morsang-sur-Orge to Ospitaletto | 421.73 mi (678.72 km) |
| Morsang-sur-Orge to Ostuni | 924.64 mi (1,488.07 km) |
| Morsang-sur-Orge to Ottaviano | 801.73 mi (1,290.27 km) |
| Morsang-sur-Orge to Ovada | 407.84 mi (656.35 km) |
| Morsang-sur-Orge to Ozieri | 646.41 mi (1,040.30 km) |
| Morsang-sur-Orge to Paceco | 896.83 mi (1,443.32 km) |
| Morsang-sur-Orge to Pachino | 1,046.18 mi (1,683.67 km) |
