| Leon to Orbetello | 853.28 mi (1,373.23 km) |
| Leon to Oria | 1,204.69 mi (1,938.77 km) |
| Leon to Oristano | 757.86 mi (1,219.66 km) |
| Leon to Orta Nova | 1,093.91 mi (1,760.48 km) |
| Leon to Orte | 912.55 mi (1,468.61 km) |
| Leon to Ortona | 1,015.44 mi (1,634.19 km) |
| Leon to Orvieto | 896.70 mi (1,443.10 km) |
| Leon to Orzinuovi | 792.94 mi (1,276.11 km) |
| Leon to Osimo | 961.90 mi (1,548.03 km) |
| Leon to Ospitaletto | 801.29 mi (1,289.56 km) |
| Leon to Ostuni | 1,198.19 mi (1,928.31 km) |
| Leon to Ottaviano | 1,038.38 mi (1,671.11 km) |
| Leon to Ovada | 723.82 mi (1,164.87 km) |
| Leon to Ozieri | 764.85 mi (1,230.90 km) |
| Leon to Paceco | 1,004.54 mi (1,616.66 km) |
