| Teays Valley to Mangualde | 3,832.05 mi (6,167.09 km) |
| Teays Valley to Marco de Canavezes | 3,797.43 mi (6,111.38 km) |
| Teays Valley to Marinha Grande | 3,799.33 mi (6,114.43 km) |
| Teays Valley to Massama | 3,810.71 mi (6,132.74 km) |
| Teays Valley to Matosinhos | 3,771.14 mi (6,069.06 km) |
| Teays Valley to Mealhada | 3,805.07 mi (6,123.67 km) |
| Teays Valley to Melgaco | 3,766.71 mi (6,061.94 km) |
| Teays Valley to Melres | 3,788.66 mi (6,097.27 km) |
| Teays Valley to Mira | 3,790.03 mi (6,099.47 km) |
| Teays Valley to Miranda do Corvo | 3,818.60 mi (6,145.45 km) |
| Teays Valley to Mirandela | 3,835.23 mi (6,172.21 km) |
| Teays Valley to Mogadouro | 3,861.52 mi (6,214.51 km) |
| Teays Valley to Moimenta da Beira | 3,828.66 mi (6,161.63 km) |
| Teays Valley to Moita | 3,828.07 mi (6,160.68 km) |
| Teays Valley to Moncao | 3,757.77 mi (6,047.55 km) |
