| Kallithea to Montemor-o-Novo | 1,722.51 mi (2,772.12 km) |
| Kallithea to Montemor-o-Velho | 1,734.51 mi (2,791.42 km) |
| Kallithea to Montijo | 1,758.62 mi (2,830.22 km) |
| Kallithea to Mortagua | 1,709.26 mi (2,750.79 km) |
| Kallithea to Moura | 1,687.02 mi (2,715.00 km) |
| Kallithea to Murtosa | 1,728.58 mi (2,781.88 km) |
| Kallithea to Nazare | 1,758.92 mi (2,830.71 km) |
| Kallithea to Nelas | 1,688.73 mi (2,717.75 km) |
| Kallithea to Obidos | 1,765.81 mi (2,841.79 km) |
| Kallithea to Odemira | 1,757.23 mi (2,828.00 km) |
| Kallithea to Odivelas | 1,772.41 mi (2,852.42 km) |
| Kallithea to Oeiras | 1,780.83 mi (2,865.97 km) |
| Kallithea to Olhao | 1,722.11 mi (2,771.47 km) |
| Kallithea to Oliveira de Azemeis | 1,719.80 mi (2,767.74 km) |
| Kallithea to Oliveira de Frades | 1,705.16 mi (2,744.19 km) |
