| Carol Stream to Mangualde | 4,010.26 mi (6,453.90 km) |
| Carol Stream to Marco de Canavezes | 3,972.70 mi (6,393.45 km) |
| Carol Stream to Marinha Grande | 3,986.39 mi (6,415.48 km) |
| Carol Stream to Massama | 4,005.30 mi (6,445.91 km) |
| Carol Stream to Matosinhos | 3,947.83 mi (6,353.41 km) |
| Carol Stream to Mealhada | 3,986.59 mi (6,415.79 km) |
| Carol Stream to Melgaco | 3,935.80 mi (6,334.07 km) |
| Carol Stream to Melres | 3,965.38 mi (6,381.67 km) |
| Carol Stream to Mira | 3,971.95 mi (6,392.23 km) |
| Carol Stream to Miranda do Corvo | 4,001.73 mi (6,440.16 km) |
| Carol Stream to Mirandela | 4,005.93 mi (6,446.92 km) |
| Carol Stream to Mogadouro | 4,032.04 mi (6,488.95 km) |
| Carol Stream to Moimenta da Beira | 4,003.94 mi (6,443.71 km) |
| Carol Stream to Moita | 4,022.58 mi (6,473.72 km) |
| Carol Stream to Moncao | 3,927.70 mi (6,321.03 km) |
