| Le Mont-sur-Lausanne to Orbetello | 361.33 mi (581.51 km) |
| Le Mont-sur-Lausanne to Oria | 689.79 mi (1,110.10 km) |
| Le Mont-sur-Lausanne to Oristano | 467.66 mi (752.62 km) |
| Le Mont-sur-Lausanne to Orta Nova | 576.43 mi (927.67 km) |
| Le Mont-sur-Lausanne to Orte | 398.95 mi (642.04 km) |
| Le Mont-sur-Lausanne to Ortona | 479.35 mi (771.44 km) |
| Le Mont-sur-Lausanne to Orvieto | 376.36 mi (605.70 km) |
| Le Mont-sur-Lausanne to Orzinuovi | 176.69 mi (284.35 km) |
| Le Mont-sur-Lausanne to Osimo | 395.10 mi (635.85 km) |
| Le Mont-sur-Lausanne to Ospitaletto | 178.26 mi (286.88 km) |
| Le Mont-sur-Lausanne to Ostuni | 677.36 mi (1,090.11 km) |
| Le Mont-sur-Lausanne to Ottaviano | 553.93 mi (891.47 km) |
| Le Mont-sur-Lausanne to Ovada | 162.64 mi (261.74 km) |
| Le Mont-sur-Lausanne to Ozieri | 427.05 mi (687.27 km) |
| Le Mont-sur-Lausanne to Paceco | 662.70 mi (1,066.51 km) |
