| Oliveira de Frades to Noventa Vicentina | 1,041.98 mi (1,676.90 km) |
| Oliveira de Frades to Novi di Modena | 1,006.82 mi (1,620.31 km) |
| Oliveira de Frades to Novi Ligure | 903.29 mi (1,453.70 km) |
| Oliveira de Frades to Nuoro | 918.96 mi (1,478.93 km) |
| Oliveira de Frades to Occhiobello | 1,039.96 mi (1,673.65 km) |
| Oliveira de Frades to Oderzo | 1,094.11 mi (1,760.79 km) |
| Oliveira de Frades to Oggiono | 946.79 mi (1,523.71 km) |
| Oliveira de Frades to Olbia | 923.19 mi (1,485.73 km) |
| Oliveira de Frades to Oleggio | 910.07 mi (1,464.61 km) |
| Oliveira de Frades to Olgiate Comasco | 929.01 mi (1,495.10 km) |
| Oliveira de Frades to Olgiate Olona | 922.32 mi (1,484.34 km) |
| Oliveira de Frades to Omegna | 905.07 mi (1,456.57 km) |
| Oliveira de Frades to Opera | 933.52 mi (1,502.36 km) |
| Oliveira de Frades to Oppeano | 1,025.49 mi (1,650.37 km) |
| Oliveira de Frades to Orbassano | 847.84 mi (1,364.46 km) |
