| Santa Iria da Azoia to Noventa Vicentina | 1,143.30 mi (1,839.97 km) |
| Santa Iria da Azoia to Novi di Modena | 1,106.41 mi (1,780.60 km) |
| Santa Iria da Azoia to Novi Ligure | 1,004.37 mi (1,616.38 km) |
| Santa Iria da Azoia to Nuoro | 984.42 mi (1,584.26 km) |
| Santa Iria da Azoia to Occhiobello | 1,139.09 mi (1,833.19 km) |
| Santa Iria da Azoia to Oderzo | 1,197.33 mi (1,926.92 km) |
| Santa Iria da Azoia to Oggiono | 1,053.51 mi (1,695.46 km) |
| Santa Iria da Azoia to Olbia | 993.94 mi (1,599.59 km) |
| Santa Iria da Azoia to Oleggio | 1,016.67 mi (1,636.18 km) |
| Santa Iria da Azoia to Olgiate Comasco | 1,036.24 mi (1,667.67 km) |
| Santa Iria da Azoia to Olgiate Olona | 1,028.78 mi (1,655.66 km) |
| Santa Iria da Azoia to Omegna | 1,013.64 mi (1,631.30 km) |
| Santa Iria da Azoia to Opera | 1,038.03 mi (1,670.55 km) |
| Santa Iria da Azoia to Oppeano | 1,127.25 mi (1,814.14 km) |
| Santa Iria da Azoia to Orbassano | 952.29 mi (1,532.57 km) |
