| Thatcham to Mangualde | 808.00 mi (1,300.35 km) |
| Thatcham to Marco de Canavezes | 778.18 mi (1,252.36 km) |
| Thatcham to Marinha Grande | 885.43 mi (1,424.96 km) |
| Thatcham to Massama | 955.95 mi (1,538.45 km) |
| Thatcham to Matosinhos | 789.49 mi (1,270.55 km) |
| Thatcham to Mealhada | 835.29 mi (1,344.26 km) |
| Thatcham to Melgaco | 721.52 mi (1,161.17 km) |
| Thatcham to Melres | 790.64 mi (1,272.41 km) |
| Thatcham to Mira | 837.74 mi (1,348.22 km) |
| Thatcham to Miranda do Corvo | 851.25 mi (1,369.95 km) |
| Thatcham to Mirandela | 740.43 mi (1,191.60 km) |
| Thatcham to Mogadouro | 742.33 mi (1,194.67 km) |
| Thatcham to Moimenta da Beira | 781.00 mi (1,256.89 km) |
| Thatcham to Moita | 957.23 mi (1,540.52 km) |
| Thatcham to Moncao | 728.87 mi (1,173.00 km) |
