| Ciampino to Montemor-o-Novo | 1,116.60 mi (1,797.00 km) |
| Ciampino to Montemor-o-Velho | 1,112.95 mi (1,791.13 km) |
| Ciampino to Montijo | 1,151.01 mi (1,852.37 km) |
| Ciampino to Mortagua | 1,085.86 mi (1,747.53 km) |
| Ciampino to Moura | 1,088.81 mi (1,752.26 km) |
| Ciampino to Murtosa | 1,102.38 mi (1,774.10 km) |
| Ciampino to Nazare | 1,141.98 mi (1,837.85 km) |
| Ciampino to Nelas | 1,064.97 mi (1,713.90 km) |
| Ciampino to Obidos | 1,151.01 mi (1,852.38 km) |
| Ciampino to Odemira | 1,162.57 mi (1,870.97 km) |
| Ciampino to Odivelas | 1,163.18 mi (1,871.96 km) |
| Ciampino to Oeiras | 1,172.44 mi (1,886.85 km) |
| Ciampino to Olhao | 1,136.76 mi (1,829.43 km) |
| Ciampino to Oliveira de Azemeis | 1,092.88 mi (1,758.82 km) |
| Ciampino to Oliveira de Frades | 1,079.45 mi (1,737.20 km) |
