| Buckley to Mangualde | 895.48 mi (1,441.14 km) |
| Buckley to Marco de Canavezes | 861.25 mi (1,386.05 km) |
| Buckley to Marinha Grande | 967.42 mi (1,556.91 km) |
| Buckley to Massama | 1,038.43 mi (1,671.19 km) |
| Buckley to Matosinhos | 868.61 mi (1,397.90 km) |
| Buckley to Mealhada | 918.69 mi (1,478.49 km) |
| Buckley to Melgaco | 800.48 mi (1,288.25 km) |
| Buckley to Melres | 872.30 mi (1,403.84 km) |
| Buckley to Mira | 919.07 mi (1,479.10 km) |
| Buckley to Miranda do Corvo | 936.23 mi (1,506.71 km) |
| Buckley to Mirandela | 829.59 mi (1,335.09 km) |
| Buckley to Mogadouro | 835.23 mi (1,344.17 km) |
| Buckley to Moimenta da Beira | 868.48 mi (1,397.68 km) |
| Buckley to Moita | 1,041.77 mi (1,676.56 km) |
| Buckley to Moncao | 806.36 mi (1,297.71 km) |
