| Union Park to Mangualde | 4,141.61 mi (6,665.27 km) |
| Union Park to Marco de Canavezes | 4,112.74 mi (6,618.82 km) |
| Union Park to Marinha Grande | 4,094.98 mi (6,590.24 km) |
| Union Park to Massama | 4,093.16 mi (6,587.31 km) |
| Union Park to Matosinhos | 4,084.84 mi (6,573.92 km) |
| Union Park to Mealhada | 4,109.88 mi (6,614.21 km) |
| Union Park to Melgaco | 4,092.86 mi (6,586.82 km) |
| Union Park to Melres | 4,101.84 mi (6,601.28 km) |
| Union Park to Mira | 4,094.58 mi (6,589.59 km) |
| Union Park to Miranda do Corvo | 4,120.36 mi (6,631.07 km) |
| Union Park to Mirandela | 4,156.98 mi (6,690.01 km) |
| Union Park to Mogadouro | 4,182.85 mi (6,731.65 km) |
| Union Park to Moimenta da Beira | 4,143.14 mi (6,667.73 km) |
| Union Park to Moita | 4,110.18 mi (6,614.70 km) |
| Union Park to Moncao | 4,082.80 mi (6,570.63 km) |
