| Ustron to Marco de Canavezes | 1,423.60 mi (2,291.06 km) |
| Ustron to Marinha Grande | 1,514.07 mi (2,436.65 km) |
| Ustron to Massama | 1,570.06 mi (2,526.76 km) |
| Ustron to Matosinhos | 1,447.46 mi (2,329.46 km) |
| Ustron to Mealhada | 1,467.77 mi (2,362.15 km) |
| Ustron to Melgaco | 1,394.01 mi (2,243.45 km) |
| Ustron to Melres | 1,438.90 mi (2,315.68 km) |
| Ustron to Mira | 1,477.99 mi (2,378.59 km) |
| Ustron to Miranda do Corvo | 1,474.13 mi (2,372.38 km) |
| Ustron to Mirandela | 1,370.19 mi (2,205.10 km) |
| Ustron to Mogadouro | 1,355.95 mi (2,182.19 km) |
| Ustron to Moimenta da Beira | 1,408.28 mi (2,266.41 km) |
| Ustron to Moita | 1,562.26 mi (2,514.22 km) |
| Ustron to Moncao | 1,404.91 mi (2,260.98 km) |
| Ustron to Montalegre | 1,384.00 mi (2,227.33 km) |
