| Horwich to Mangualde | 929.73 mi (1,496.26 km) |
| Horwich to Marco de Canavezes | 895.92 mi (1,441.85 km) |
| Horwich to Marinha Grande | 1,002.27 mi (1,613.00 km) |
| Horwich to Massama | 1,073.28 mi (1,727.28 km) |
| Horwich to Matosinhos | 903.64 mi (1,454.28 km) |
| Horwich to Mealhada | 953.37 mi (1,534.31 km) |
| Horwich to Melgaco | 835.46 mi (1,344.55 km) |
| Horwich to Melres | 907.11 mi (1,459.86 km) |
| Horwich to Mira | 953.95 mi (1,535.23 km) |
| Horwich to Miranda do Corvo | 970.77 mi (1,562.30 km) |
| Horwich to Mirandela | 863.59 mi (1,389.81 km) |
| Horwich to Mogadouro | 868.79 mi (1,398.18 km) |
| Horwich to Moimenta da Beira | 902.70 mi (1,452.76 km) |
| Horwich to Moita | 1,076.43 mi (1,732.35 km) |
| Horwich to Moncao | 841.47 mi (1,354.22 km) |
