| Kallithea to Marco de Canavezes | 1,701.45 mi (2,738.22 km) |
| Kallithea to Marinha Grande | 1,750.67 mi (2,817.43 km) |
| Kallithea to Massama | 1,777.83 mi (2,861.13 km) |
| Kallithea to Matosinhos | 1,730.01 mi (2,784.18 km) |
| Kallithea to Mealhada | 1,720.91 mi (2,769.54 km) |
| Kallithea to Melgaco | 1,705.21 mi (2,744.26 km) |
| Kallithea to Melres | 1,714.89 mi (2,759.85 km) |
| Kallithea to Mira | 1,735.47 mi (2,792.96 km) |
| Kallithea to Miranda do Corvo | 1,716.54 mi (2,762.51 km) |
| Kallithea to Mirandela | 1,650.39 mi (2,656.05 km) |
| Kallithea to Mogadouro | 1,626.64 mi (2,617.82 km) |
| Kallithea to Moimenta da Beira | 1,674.31 mi (2,694.54 km) |
| Kallithea to Moita | 1,763.41 mi (2,837.93 km) |
| Kallithea to Moncao | 1,716.20 mi (2,761.96 km) |
| Kallithea to Montalegre | 1,681.24 mi (2,705.69 km) |
