| Gilbert to Mangualde | 5,404.79 mi (8,698.17 km) |
| Gilbert to Marco de Canavezes | 5,365.61 mi (8,635.12 km) |
| Gilbert to Marinha Grande | 5,386.22 mi (8,668.29 km) |
| Gilbert to Massama | 5,408.94 mi (8,704.84 km) |
| Gilbert to Matosinhos | 5,341.79 mi (8,596.78 km) |
| Gilbert to Mealhada | 5,383.26 mi (8,663.51 km) |
| Gilbert to Melgaco | 5,324.88 mi (8,569.57 km) |
| Gilbert to Melres | 5,359.25 mi (8,624.89 km) |
| Gilbert to Mira | 5,368.93 mi (8,640.46 km) |
| Gilbert to Miranda do Corvo | 5,399.26 mi (8,689.26 km) |
| Gilbert to Mirandela | 5,395.60 mi (8,683.37 km) |
| Gilbert to Mogadouro | 5,421.41 mi (8,724.92 km) |
| Gilbert to Moimenta da Beira | 5,396.65 mi (8,685.06 km) |
| Gilbert to Moita | 5,426.11 mi (8,732.48 km) |
| Gilbert to Moncao | 5,317.41 mi (8,557.55 km) |
