| Discovery Bay to Mangualde | 5,591.29 mi (8,998.31 km) |
| Discovery Bay to Marco de Canavezes | 5,549.17 mi (8,930.53 km) |
| Discovery Bay to Marinha Grande | 5,585.92 mi (8,989.68 km) |
| Discovery Bay to Massama | 5,618.76 mi (9,042.52 km) |
| Discovery Bay to Matosinhos | 5,528.12 mi (8,896.64 km) |
| Discovery Bay to Mealhada | 5,575.13 mi (8,972.31 km) |
| Discovery Bay to Melgaco | 5,501.04 mi (8,853.07 km) |
| Discovery Bay to Melres | 5,545.07 mi (8,923.93 km) |
| Discovery Bay to Mira | 5,561.82 mi (8,950.89 km) |
| Discovery Bay to Miranda do Corvo | 5,592.94 mi (9,000.96 km) |
| Discovery Bay to Mirandela | 5,571.67 mi (8,966.74 km) |
| Discovery Bay to Mogadouro | 5,596.39 mi (9,006.53 km) |
| Discovery Bay to Moimenta da Beira | 5,579.21 mi (8,978.87 km) |
| Discovery Bay to Moita | 5,635.33 mi (9,069.19 km) |
| Discovery Bay to Moncao | 5,495.00 mi (8,843.36 km) |
