| Dublin to Marco de Canavezes | 845.21 mi (1,360.24 km) |
| Dublin to Marinha Grande | 948.04 mi (1,525.72 km) |
| Dublin to Massama | 1,018.36 mi (1,638.90 km) |
| Dublin to Matosinhos | 848.25 mi (1,365.13 km) |
| Dublin to Mealhada | 901.75 mi (1,451.23 km) |
| Dublin to Melgaco | 781.64 mi (1,257.93 km) |
| Dublin to Melres | 854.51 mi (1,375.21 km) |
| Dublin to Mira | 899.92 mi (1,448.28 km) |
| Dublin to Miranda do Corvo | 920.63 mi (1,481.62 km) |
| Dublin to Mirandela | 820.88 mi (1,321.08 km) |
| Dublin to Mogadouro | 830.54 mi (1,336.63 km) |
| Dublin to Moimenta da Beira | 857.02 mi (1,379.25 km) |
| Dublin to Moita | 1,023.85 mi (1,647.73 km) |
| Dublin to Moncao | 785.85 mi (1,264.70 km) |
| Dublin to Montalegre | 799.57 mi (1,286.79 km) |
