| Runcorn to Mangualde | 910.87 mi (1,465.91 km) |
| Runcorn to Marco de Canavezes | 876.99 mi (1,411.38 km) |
| Runcorn to Marinha Grande | 983.31 mi (1,582.49 km) |
| Runcorn to Massama | 1,054.33 mi (1,696.77 km) |
| Runcorn to Matosinhos | 884.66 mi (1,423.73 km) |
| Runcorn to Mealhada | 934.44 mi (1,503.83 km) |
| Runcorn to Melgaco | 816.49 mi (1,314.01 km) |
| Runcorn to Melres | 888.16 mi (1,429.36 km) |
| Runcorn to Mira | 934.99 mi (1,504.72 km) |
| Runcorn to Miranda do Corvo | 951.86 mi (1,531.87 km) |
| Runcorn to Mirandela | 844.77 mi (1,359.53 km) |
| Runcorn to Mogadouro | 850.07 mi (1,368.06 km) |
| Runcorn to Moimenta da Beira | 883.85 mi (1,422.42 km) |
| Runcorn to Moita | 1,057.50 mi (1,701.88 km) |
| Runcorn to Moncao | 822.48 mi (1,323.66 km) |
