| Morton Grove to Mangualde | 3,990.74 mi (6,422.47 km) |
| Morton Grove to Marco de Canavezes | 3,953.18 mi (6,362.03 km) |
| Morton Grove to Marinha Grande | 3,966.86 mi (6,384.04 km) |
| Morton Grove to Massama | 3,985.77 mi (6,414.47 km) |
| Morton Grove to Matosinhos | 3,928.30 mi (6,321.99 km) |
| Morton Grove to Mealhada | 3,967.06 mi (6,384.36 km) |
| Morton Grove to Melgaco | 3,916.30 mi (6,302.68 km) |
| Morton Grove to Melres | 3,945.86 mi (6,350.25 km) |
| Morton Grove to Mira | 3,952.42 mi (6,360.80 km) |
| Morton Grove to Miranda do Corvo | 3,982.20 mi (6,408.72 km) |
| Morton Grove to Mirandela | 3,986.42 mi (6,415.52 km) |
| Morton Grove to Mogadouro | 4,012.54 mi (6,457.55 km) |
| Morton Grove to Moimenta da Beira | 3,984.42 mi (6,412.30 km) |
| Morton Grove to Moita | 4,003.05 mi (6,442.29 km) |
| Morton Grove to Moncao | 3,908.20 mi (6,289.63 km) |
