| Millbrae to Mangualde | 5,637.16 mi (9,072.13 km) |
| Millbrae to Marco de Canavezes | 5,594.98 mi (9,004.25 km) |
| Millbrae to Marinha Grande | 5,632.14 mi (9,064.06 km) |
| Millbrae to Massama | 5,665.22 mi (9,117.29 km) |
| Millbrae to Matosinhos | 5,574.01 mi (8,970.49 km) |
| Millbrae to Mealhada | 5,621.16 mi (9,046.38 km) |
| Millbrae to Melgaco | 5,546.66 mi (8,926.49 km) |
| Millbrae to Melres | 5,590.94 mi (8,997.74 km) |
| Millbrae to Mira | 5,607.88 mi (9,025.00 km) |
| Millbrae to Miranda do Corvo | 5,639.00 mi (9,075.09 km) |
| Millbrae to Mirandela | 5,617.26 mi (9,040.11 km) |
| Millbrae to Mogadouro | 5,641.95 mi (9,079.84 km) |
| Millbrae to Moimenta da Beira | 5,624.98 mi (9,052.53 km) |
| Millbrae to Moita | 5,681.77 mi (9,143.93 km) |
| Millbrae to Moncao | 5,540.67 mi (8,916.84 km) |
