| Erie to Mangualde | 3,633.27 mi (5,847.18 km) |
| Erie to Marco de Canavezes | 3,597.06 mi (5,788.91 km) |
| Erie to Marinha Grande | 3,605.24 mi (5,802.07 km) |
| Erie to Massama | 3,620.82 mi (5,827.14 km) |
| Erie to Matosinhos | 3,571.46 mi (5,747.71 km) |
| Erie to Mealhada | 3,608.00 mi (5,806.51 km) |
| Erie to Melgaco | 3,563.13 mi (5,734.30 km) |
| Erie to Melres | 3,589.03 mi (5,775.99 km) |
| Erie to Mira | 3,593.14 mi (5,782.61 km) |
| Erie to Miranda do Corvo | 3,622.41 mi (5,829.70 km) |
| Erie to Mirandela | 3,632.57 mi (5,846.05 km) |
| Erie to Mogadouro | 3,658.81 mi (5,888.28 km) |
| Erie to Moimenta da Beira | 3,628.34 mi (5,839.25 km) |
| Erie to Moita | 3,638.16 mi (5,855.05 km) |
| Erie to Moncao | 3,554.60 mi (5,720.57 km) |
