| Seraing to Montemor-o-Novo | 1,061.78 mi (1,708.78 km) |
| Seraing to Montemor-o-Velho | 992.63 mi (1,597.49 km) |
| Seraing to Montijo | 1,081.17 mi (1,739.97 km) |
| Seraing to Mortagua | 963.42 mi (1,550.47 km) |
| Seraing to Moura | 1,068.70 mi (1,719.91 km) |
| Seraing to Murtosa | 960.75 mi (1,546.18 km) |
| Seraing to Nazare | 1,035.93 mi (1,667.17 km) |
| Seraing to Nelas | 946.37 mi (1,523.04 km) |
| Seraing to Obidos | 1,052.10 mi (1,693.20 km) |
| Seraing to Odemira | 1,135.58 mi (1,827.54 km) |
| Seraing to Odivelas | 1,084.10 mi (1,744.69 km) |
| Seraing to Oeiras | 1,094.43 mi (1,761.32 km) |
| Seraing to Olhao | 1,145.10 mi (1,842.86 km) |
| Seraing to Oliveira de Azemeis | 949.78 mi (1,528.52 km) |
| Seraing to Oliveira de Frades | 946.56 mi (1,523.34 km) |
