| Silleda to Noventa Vicentina | 996.01 mi (1,602.93 km) |
| Silleda to Novi di Modena | 963.89 mi (1,551.23 km) |
| Silleda to Novi Ligure | 859.89 mi (1,383.86 km) |
| Silleda to Nuoro | 921.95 mi (1,483.74 km) |
| Silleda to Occhiobello | 997.23 mi (1,604.88 km) |
| Silleda to Oderzo | 1,044.64 mi (1,681.18 km) |
| Silleda to Oggiono | 894.03 mi (1,438.80 km) |
| Silleda to Olbia | 919.81 mi (1,480.30 km) |
| Silleda to Oleggio | 858.08 mi (1,380.95 km) |
| Silleda to Olgiate Comasco | 875.73 mi (1,409.35 km) |
| Silleda to Olgiate Olona | 870.36 mi (1,400.71 km) |
| Silleda to Omegna | 850.03 mi (1,368.00 km) |
| Silleda to Opera | 884.41 mi (1,423.31 km) |
| Silleda to Oppeano | 979.10 mi (1,575.71 km) |
| Silleda to Orbassano | 800.38 mi (1,288.08 km) |
