| Sanlucar la Mayor to Noventa Vicentina | 1,066.29 mi (1,716.03 km) |
| Sanlucar la Mayor to Novi di Modena | 1,027.06 mi (1,652.89 km) |
| Sanlucar la Mayor to Novi Ligure | 929.94 mi (1,496.59 km) |
| Sanlucar la Mayor to Nuoro | 858.82 mi (1,382.13 km) |
| Sanlucar la Mayor to Occhiobello | 1,058.29 mi (1,703.15 km) |
| Sanlucar la Mayor to Oderzo | 1,122.81 mi (1,806.99 km) |
| Sanlucar la Mayor to Oggiono | 988.46 mi (1,590.78 km) |
| Sanlucar la Mayor to Olbia | 874.55 mi (1,407.45 km) |
| Sanlucar la Mayor to Oleggio | 952.28 mi (1,532.55 km) |
| Sanlucar la Mayor to Olgiate Comasco | 972.61 mi (1,565.26 km) |
| Sanlucar la Mayor to Olgiate Olona | 963.81 mi (1,551.10 km) |
| Sanlucar la Mayor to Omegna | 953.24 mi (1,534.09 km) |
| Sanlucar la Mayor to Opera | 969.09 mi (1,559.61 km) |
| Sanlucar la Mayor to Oppeano | 1,051.34 mi (1,691.97 km) |
| Sanlucar la Mayor to Orbassano | 885.45 mi (1,424.99 km) |
