| Glassboro to Mangualde | 3,465.49 mi (5,577.17 km) |
| Glassboro to Marco de Canavezes | 3,431.64 mi (5,522.69 km) |
| Glassboro to Marinha Grande | 3,430.85 mi (5,521.42 km) |
| Glassboro to Massama | 3,440.71 mi (5,537.28 km) |
| Glassboro to Matosinhos | 3,405.05 mi (5,479.91 km) |
| Glassboro to Mealhada | 3,437.80 mi (5,532.60 km) |
| Glassboro to Melgaco | 3,402.54 mi (5,475.87 km) |
| Glassboro to Melres | 3,422.54 mi (5,508.04 km) |
| Glassboro to Mira | 3,422.69 mi (5,508.29 km) |
| Glassboro to Miranda do Corvo | 3,450.94 mi (5,553.76 km) |
| Glassboro to Mirandela | 3,470.51 mi (5,585.24 km) |
| Glassboro to Mogadouro | 3,496.79 mi (5,627.53 km) |
| Glassboro to Moimenta da Beira | 3,462.81 mi (5,572.85 km) |
| Glassboro to Moita | 3,458.06 mi (5,565.21 km) |
| Glassboro to Moncao | 3,393.40 mi (5,461.15 km) |
