| Robstown to Mangualde | 4,993.28 mi (8,035.90 km) |
| Robstown to Marco de Canavezes | 4,959.68 mi (7,981.83 km) |
| Robstown to Marinha Grande | 4,957.41 mi (7,978.19 km) |
| Robstown to Massama | 4,965.48 mi (7,991.16 km) |
| Robstown to Matosinhos | 4,933.02 mi (7,938.92 km) |
| Robstown to Mealhada | 4,965.24 mi (7,990.78 km) |
| Robstown to Melgaco | 4,930.75 mi (7,935.28 km) |
| Robstown to Melres | 4,950.49 mi (7,967.04 km) |
| Robstown to Mira | 4,950.10 mi (7,966.41 km) |
| Robstown to Miranda do Corvo | 4,978.14 mi (8,011.55 km) |
| Robstown to Mirandela | 4,998.71 mi (8,044.64 km) |
| Robstown to Mogadouro | 5,024.98 mi (8,086.93 km) |
| Robstown to Moimenta da Beira | 4,990.83 mi (8,031.96 km) |
| Robstown to Moita | 4,982.81 mi (8,019.05 km) |
| Robstown to Moncao | 4,921.61 mi (7,920.57 km) |
