| Green Bay to Mangualde | 3,921.60 mi (6,311.21 km) |
| Green Bay to Marco de Canavezes | 3,882.93 mi (6,248.97 km) |
| Green Bay to Marinha Grande | 3,901.63 mi (6,279.07 km) |
| Green Bay to Massama | 3,923.79 mi (6,314.73 km) |
| Green Bay to Matosinhos | 3,858.74 mi (6,210.05 km) |
| Green Bay to Mealhada | 3,899.42 mi (6,275.52 km) |
| Green Bay to Melgaco | 3,843.58 mi (6,185.64 km) |
| Green Bay to Melres | 3,876.25 mi (6,238.22 km) |
| Green Bay to Mira | 3,885.01 mi (6,252.32 km) |
| Green Bay to Miranda do Corvo | 3,915.20 mi (6,300.91 km) |
| Green Bay to Mirandela | 3,914.11 mi (6,299.15 km) |
| Green Bay to Mogadouro | 3,940.06 mi (6,340.92 km) |
| Green Bay to Moimenta da Beira | 3,914.05 mi (6,299.05 km) |
| Green Bay to Moita | 3,940.97 mi (6,342.38 km) |
| Green Bay to Moncao | 3,835.86 mi (6,173.22 km) |
