| Crestview to Mangualde | 4,329.32 mi (6,967.36 km) |
| Crestview to Marco de Canavezes | 4,297.58 mi (6,916.28 km) |
| Crestview to Marinha Grande | 4,289.04 mi (6,902.54 km) |
| Crestview to Massama | 4,293.28 mi (6,909.37 km) |
| Crestview to Matosinhos | 4,270.33 mi (6,872.44 km) |
| Crestview to Mealhada | 4,299.71 mi (6,919.71 km) |
| Crestview to Melgaco | 4,272.34 mi (6,875.67 km) |
| Crestview to Melres | 4,287.65 mi (6,900.31 km) |
| Crestview to Mira | 4,284.47 mi (6,895.18 km) |
| Crestview to Miranda do Corvo | 4,311.67 mi (6,938.96 km) |
| Crestview to Mirandela | 4,338.88 mi (6,982.75 km) |
| Crestview to Mogadouro | 4,365.06 mi (7,024.88 km) |
| Crestview to Moimenta da Beira | 4,328.50 mi (6,966.04 km) |
| Crestview to Moita | 4,310.53 mi (6,937.13 km) |
| Crestview to Moncao | 4,262.79 mi (6,860.30 km) |
