| Puerto Real to Noventa Vicentina | 1,101.91 mi (1,773.36 km) |
| Puerto Real to Novi di Modena | 1,062.19 mi (1,709.43 km) |
| Puerto Real to Novi Ligure | 966.95 mi (1,556.16 km) |
| Puerto Real to Nuoro | 878.82 mi (1,414.32 km) |
| Puerto Real to Occhiobello | 1,092.86 mi (1,758.79 km) |
| Puerto Real to Oderzo | 1,158.89 mi (1,865.06 km) |
| Puerto Real to Oggiono | 1,027.66 mi (1,653.87 km) |
| Puerto Real to Olbia | 897.01 mi (1,443.59 km) |
| Puerto Real to Oleggio | 991.83 mi (1,596.19 km) |
| Puerto Real to Olgiate Comasco | 1,012.25 mi (1,629.05 km) |
| Puerto Real to Olgiate Olona | 1,003.15 mi (1,614.42 km) |
| Puerto Real to Omegna | 993.78 mi (1,599.34 km) |
| Puerto Real to Opera | 1,007.38 mi (1,621.22 km) |
| Puerto Real to Oppeano | 1,087.34 mi (1,749.91 km) |
| Puerto Real to Orbassano | 924.74 mi (1,488.22 km) |
