| Castellana Grotte to Montemor-o-Novo | 1,352.10 mi (2,175.99 km) |
| Castellana Grotte to Montemor-o-Velho | 1,353.59 mi (2,178.39 km) |
| Castellana Grotte to Montijo | 1,387.19 mi (2,232.47 km) |
| Castellana Grotte to Mortagua | 1,327.01 mi (2,135.62 km) |
| Castellana Grotte to Moura | 1,321.48 mi (2,126.72 km) |
| Castellana Grotte to Murtosa | 1,344.37 mi (2,163.56 km) |
| Castellana Grotte to Nazare | 1,381.23 mi (2,222.87 km) |
| Castellana Grotte to Nelas | 1,306.19 mi (2,102.11 km) |
| Castellana Grotte to Obidos | 1,389.59 mi (2,236.32 km) |
| Castellana Grotte to Odemira | 1,394.24 mi (2,243.82 km) |
| Castellana Grotte to Odivelas | 1,399.94 mi (2,252.99 km) |
| Castellana Grotte to Oeiras | 1,408.94 mi (2,267.47 km) |
| Castellana Grotte to Olhao | 1,364.92 mi (2,196.63 km) |
| Castellana Grotte to Oliveira de Azemeis | 1,335.07 mi (2,148.58 km) |
| Castellana Grotte to Oliveira de Frades | 1,321.27 mi (2,126.38 km) |
