| Texarkana to Mangualde | 4,592.06 mi (7,390.20 km) |
| Texarkana to Marco de Canavezes | 4,556.97 mi (7,333.73 km) |
| Texarkana to Marinha Grande | 4,560.38 mi (7,339.22 km) |
| Texarkana to Massama | 4,572.34 mi (7,358.47 km) |
| Texarkana to Matosinhos | 4,530.88 mi (7,291.74 km) |
| Texarkana to Mealhada | 4,565.50 mi (7,347.47 km) |
| Texarkana to Melgaco | 4,525.15 mi (7,282.53 km) |
| Texarkana to Melres | 4,548.42 mi (7,319.97 km) |
| Texarkana to Mira | 4,550.50 mi (7,323.32 km) |
| Texarkana to Miranda do Corvo | 4,579.24 mi (7,369.57 km) |
| Texarkana to Mirandela | 4,594.03 mi (7,393.38 km) |
| Texarkana to Mogadouro | 4,620.31 mi (7,435.67 km) |
| Texarkana to Moimenta da Beira | 4,588.22 mi (7,384.03 km) |
| Texarkana to Moita | 4,589.70 mi (7,386.41 km) |
| Texarkana to Moncao | 4,516.36 mi (7,268.38 km) |
