| La Porte to Mangualde | 4,788.59 mi (7,706.49 km) |
| La Porte to Marco de Canavezes | 4,754.93 mi (7,652.31 km) |
| La Porte to Marinha Grande | 4,752.98 mi (7,649.18 km) |
| La Porte to Massama | 4,761.34 mi (7,662.64 km) |
| La Porte to Matosinhos | 4,728.29 mi (7,609.44 km) |
| La Porte to Mealhada | 4,760.63 mi (7,661.50 km) |
| La Porte to Melgaco | 4,725.90 mi (7,605.60 km) |
| La Porte to Melres | 4,745.76 mi (7,637.56 km) |
| La Porte to Mira | 4,745.50 mi (7,637.14 km) |
| La Porte to Miranda do Corvo | 4,773.59 mi (7,682.35 km) |
| La Porte to Mirandela | 4,793.88 mi (7,715.01 km) |
| La Porte to Mogadouro | 4,820.16 mi (7,757.30 km) |
| La Porte to Moimenta da Beira | 4,786.08 mi (7,702.46 km) |
| La Porte to Moita | 4,778.67 mi (7,690.53 km) |
| La Porte to Moncao | 4,716.77 mi (7,590.91 km) |
