| Cassino to Montemor-o-Novo | 1,178.97 mi (1,897.37 km) |
| Cassino to Montemor-o-Velho | 1,177.36 mi (1,894.78 km) |
| Cassino to Montijo | 1,213.65 mi (1,953.19 km) |
| Cassino to Mortagua | 1,150.48 mi (1,851.52 km) |
| Cassino to Moura | 1,150.10 mi (1,850.90 km) |
| Cassino to Murtosa | 1,167.36 mi (1,878.69 km) |
| Cassino to Nazare | 1,205.83 mi (1,940.59 km) |
| Cassino to Nelas | 1,129.61 mi (1,817.94 km) |
| Cassino to Obidos | 1,214.59 mi (1,954.69 km) |
| Cassino to Odemira | 1,223.52 mi (1,969.07 km) |
| Cassino to Odivelas | 1,226.05 mi (1,973.13 km) |
| Cassino to Oeiras | 1,235.21 mi (1,987.88 km) |
| Cassino to Olhao | 1,196.42 mi (1,925.45 km) |
| Cassino to Oliveira de Azemeis | 1,157.95 mi (1,863.53 km) |
| Cassino to Oliveira de Frades | 1,144.35 mi (1,841.66 km) |
