| East Retford to Mangualde | 934.69 mi (1,504.23 km) |
| East Retford to Marco de Canavezes | 903.18 mi (1,453.53 km) |
| East Retford to Marinha Grande | 1,010.25 mi (1,625.84 km) |
| East Retford to Massama | 1,081.09 mi (1,739.85 km) |
| East Retford to Matosinhos | 912.96 mi (1,469.27 km) |
| East Retford to Mealhada | 960.55 mi (1,545.85 km) |
| East Retford to Melgaco | 844.73 mi (1,359.47 km) |
| East Retford to Melres | 915.13 mi (1,472.76 km) |
| East Retford to Mira | 962.21 mi (1,548.53 km) |
| East Retford to Miranda do Corvo | 977.13 mi (1,572.53 km) |
| East Retford to Mirandela | 867.54 mi (1,396.18 km) |
| East Retford to Mogadouro | 870.69 mi (1,401.24 km) |
| East Retford to Moimenta da Beira | 907.62 mi (1,460.68 km) |
| East Retford to Moita | 1,083.14 mi (1,743.15 km) |
| East Retford to Moncao | 851.50 mi (1,370.36 km) |
