| Buttelborn to Marco de Canavezes | 1,002.82 mi (1,613.88 km) |
| Buttelborn to Marinha Grande | 1,101.19 mi (1,772.19 km) |
| Buttelborn to Massama | 1,163.41 mi (1,872.32 km) |
| Buttelborn to Matosinhos | 1,024.01 mi (1,647.99 km) |
| Buttelborn to Mealhada | 1,052.22 mi (1,693.38 km) |
| Buttelborn to Melgaco | 964.98 mi (1,552.99 km) |
| Buttelborn to Melres | 1,017.85 mi (1,638.08 km) |
| Buttelborn to Mira | 1,060.52 mi (1,706.75 km) |
| Buttelborn to Miranda do Corvo | 1,061.63 mi (1,708.53 km) |
| Buttelborn to Mirandela | 951.76 mi (1,531.71 km) |
| Buttelborn to Mogadouro | 941.52 mi (1,515.24 km) |
| Buttelborn to Moimenta da Beira | 992.07 mi (1,596.58 km) |
| Buttelborn to Moita | 1,158.23 mi (1,864.00 km) |
| Buttelborn to Moncao | 975.32 mi (1,569.63 km) |
| Buttelborn to Montalegre | 959.52 mi (1,544.20 km) |
