| Weslaco to Mangualde | 5,077.42 mi (8,171.33 km) |
| Weslaco to Marco de Canavezes | 5,044.45 mi (8,118.25 km) |
| Weslaco to Marinha Grande | 5,039.96 mi (8,111.02 km) |
| Weslaco to Massama | 5,046.51 mi (8,121.58 km) |
| Weslaco to Matosinhos | 5,017.58 mi (8,075.01 km) |
| Weslaco to Mealhada | 5,048.82 mi (8,125.30 km) |
| Weslaco to Melgaco | 5,016.70 mi (8,073.60 km) |
| Weslaco to Melres | 5,035.00 mi (8,103.06 km) |
| Weslaco to Mira | 5,033.64 mi (8,100.87 km) |
| Weslaco to Miranda do Corvo | 5,061.40 mi (8,145.53 km) |
| Weslaco to Mirandela | 5,084.24 mi (8,182.29 km) |
| Weslaco to Mogadouro | 5,110.49 mi (8,224.54 km) |
| Weslaco to Moimenta da Beira | 5,075.53 mi (8,168.28 km) |
| Weslaco to Moita | 5,063.82 mi (8,149.43 km) |
| Weslaco to Moncao | 5,007.43 mi (8,058.68 km) |
