| Alcamo to Montemor-o-Novo | 1,146.64 mi (1,845.34 km) |
| Alcamo to Montemor-o-Velho | 1,168.03 mi (1,879.76 km) |
| Alcamo to Montijo | 1,183.22 mi (1,904.20 km) |
| Alcamo to Mortagua | 1,144.66 mi (1,842.15 km) |
| Alcamo to Moura | 1,108.42 mi (1,783.83 km) |
| Alcamo to Murtosa | 1,166.36 mi (1,877.08 km) |
| Alcamo to Nazare | 1,188.75 mi (1,913.11 km) |
| Alcamo to Nelas | 1,124.72 mi (1,810.06 km) |
| Alcamo to Obidos | 1,194.20 mi (1,921.89 km) |
| Alcamo to Odemira | 1,177.06 mi (1,894.30 km) |
| Alcamo to Odivelas | 1,197.68 mi (1,927.48 km) |
| Alcamo to Oeiras | 1,205.62 mi (1,940.26 km) |
| Alcamo to Olhao | 1,139.92 mi (1,834.53 km) |
| Alcamo to Oliveira de Azemeis | 1,158.42 mi (1,864.30 km) |
| Alcamo to Oliveira de Frades | 1,142.77 mi (1,839.11 km) |
