| Donostia to Montalegre | 313.20 mi (504.04 km) |
| Donostia to Montemor-o-Novo | 457.92 mi (736.95 km) |
| Donostia to Montemor-o-Velho | 408.32 mi (657.13 km) |
| Donostia to Montijo | 482.22 mi (776.06 km) |
| Donostia to Mortagua | 378.36 mi (608.91 km) |
| Donostia to Moura | 458.53 mi (737.94 km) |
| Donostia to Murtosa | 385.26 mi (620.01 km) |
| Donostia to Nazare | 447.75 mi (720.58 km) |
| Donostia to Nelas | 358.46 mi (576.89 km) |
| Donostia to Obidos | 461.87 mi (743.30 km) |
| Donostia to Odemira | 528.29 mi (850.20 km) |
| Donostia to Odivelas | 488.20 mi (785.69 km) |
| Donostia to Oeiras | 498.64 mi (802.49 km) |
| Donostia to Olhao | 533.41 mi (858.43 km) |
| Donostia to Oliveira de Azemeis | 374.42 mi (602.56 km) |
