| Mairena del Aljarafe to Noventa Vicentina | 1,062.45 mi (1,709.85 km) |
| Mairena del Aljarafe to Novi di Modena | 1,023.14 mi (1,646.58 km) |
| Mairena del Aljarafe to Novi Ligure | 926.30 mi (1,490.73 km) |
| Mairena del Aljarafe to Nuoro | 852.97 mi (1,372.73 km) |
| Mairena del Aljarafe to Occhiobello | 1,054.29 mi (1,696.72 km) |
| Mairena del Aljarafe to Oderzo | 1,119.05 mi (1,800.93 km) |
| Mairena del Aljarafe to Oggiono | 985.20 mi (1,585.52 km) |
| Mairena del Aljarafe to Olbia | 868.97 mi (1,398.47 km) |
| Mairena del Aljarafe to Oleggio | 949.07 mi (1,527.38 km) |
| Mairena del Aljarafe to Olgiate Comasco | 969.42 mi (1,560.12 km) |
| Mairena del Aljarafe to Olgiate Olona | 960.56 mi (1,545.88 km) |
| Mairena del Aljarafe to Omegna | 950.20 mi (1,529.21 km) |
| Mairena del Aljarafe to Opera | 965.67 mi (1,554.10 km) |
| Mairena del Aljarafe to Oppeano | 1,047.56 mi (1,685.89 km) |
| Mairena del Aljarafe to Orbassano | 882.18 mi (1,419.73 km) |
