| Horsforth to Mangualde | 957.43 mi (1,540.83 km) |
| Horsforth to Marco de Canavezes | 924.57 mi (1,487.95 km) |
| Horsforth to Marinha Grande | 1,031.28 mi (1,659.69 km) |
| Horsforth to Massama | 1,102.26 mi (1,773.91 km) |
| Horsforth to Matosinhos | 933.14 mi (1,501.74 km) |
| Horsforth to Mealhada | 982.02 mi (1,580.41 km) |
| Horsforth to Melgaco | 864.89 mi (1,391.90 km) |
| Horsforth to Melres | 936.08 mi (1,506.47 km) |
| Horsforth to Mira | 983.05 mi (1,582.06 km) |
| Horsforth to Miranda do Corvo | 999.09 mi (1,607.88 km) |
| Horsforth to Mirandela | 890.81 mi (1,433.62 km) |
| Horsforth to Mogadouro | 895.11 mi (1,440.54 km) |
| Horsforth to Moimenta da Beira | 930.37 mi (1,497.28 km) |
| Horsforth to Moita | 1,104.95 mi (1,778.25 km) |
| Horsforth to Moncao | 871.21 mi (1,402.07 km) |
