| Osuna to Noventa Vicentina | 1,024.40 mi (1,648.62 km) |
| Osuna to Novi di Modena | 984.69 mi (1,584.71 km) |
| Osuna to Novi Ligure | 889.47 mi (1,431.46 km) |
| Osuna to Nuoro | 805.08 mi (1,295.65 km) |
| Osuna to Occhiobello | 1,015.39 mi (1,634.11 km) |
| Osuna to Oderzo | 1,081.38 mi (1,740.31 km) |
| Osuna to Oggiono | 950.37 mi (1,529.47 km) |
| Osuna to Olbia | 822.25 mi (1,323.29 km) |
| Osuna to Oleggio | 914.58 mi (1,471.88 km) |
| Osuna to Olgiate Comasco | 935.01 mi (1,504.76 km) |
| Osuna to Olgiate Olona | 925.88 mi (1,490.05 km) |
| Osuna to Omegna | 916.71 mi (1,475.30 km) |
| Osuna to Opera | 929.98 mi (1,496.66 km) |
| Osuna to Oppeano | 1,009.83 mi (1,625.17 km) |
| Osuna to Orbassano | 847.47 mi (1,363.87 km) |
