| McComb to Mangualde | 4,502.77 mi (7,246.50 km) |
| McComb to Marco de Canavezes | 4,469.66 mi (7,193.22 km) |
| McComb to Marinha Grande | 4,465.80 mi (7,187.01 km) |
| McComb to Massama | 4,473.04 mi (7,198.66 km) |
| McComb to Matosinhos | 4,442.83 mi (7,150.04 km) |
| McComb to Mealhada | 4,474.31 mi (7,200.71 km) |
| McComb to Melgaco | 4,441.77 mi (7,148.34 km) |
| McComb to Melres | 4,460.26 mi (7,178.10 km) |
| McComb to Mira | 4,459.14 mi (7,176.30 km) |
| McComb to Miranda do Corvo | 4,486.99 mi (7,221.11 km) |
| McComb to Mirandela | 4,509.34 mi (7,257.08 km) |
| McComb to Mogadouro | 4,535.60 mi (7,299.34 km) |
| McComb to Moimenta da Beira | 4,500.76 mi (7,243.27 km) |
| McComb to Moita | 4,490.36 mi (7,226.53 km) |
| McComb to Moncao | 4,432.51 mi (7,133.43 km) |
