| Castalla to Montalegre | 436.67 mi (702.75 km) |
| Castalla to Montemor-o-Novo | 407.23 mi (655.38 km) |
| Castalla to Montemor-o-Velho | 441.27 mi (710.15 km) |
| Castalla to Montijo | 444.00 mi (714.55 km) |
| Castalla to Mortagua | 422.44 mi (679.85 km) |
| Castalla to Moura | 368.57 mi (593.15 km) |
| Castalla to Murtosa | 448.29 mi (721.46 km) |
| Castalla to Nazare | 455.33 mi (732.78 km) |
| Castalla to Nelas | 404.65 mi (651.22 km) |
| Castalla to Obidos | 458.71 mi (738.22 km) |
| Castalla to Odemira | 438.47 mi (705.66 km) |
| Castalla to Odivelas | 458.89 mi (738.52 km) |
| Castalla to Oeiras | 466.46 mi (750.70 km) |
| Castalla to Olhao | 406.03 mi (653.45 km) |
| Castalla to Oliveira de Azemeis | 442.58 mi (712.26 km) |
