| Haddington to Mangualde | 1,084.44 mi (1,745.24 km) |
| Haddington to Marco de Canavezes | 1,049.01 mi (1,688.22 km) |
| Haddington to Marinha Grande | 1,154.37 mi (1,857.78 km) |
| Haddington to Massama | 1,225.29 mi (1,971.92 km) |
| Haddington to Matosinhos | 1,055.01 mi (1,697.87 km) |
| Haddington to Mealhada | 1,106.31 mi (1,780.43 km) |
| Haddington to Melgaco | 987.19 mi (1,588.72 km) |
| Haddington to Melres | 1,059.55 mi (1,705.18 km) |
| Haddington to Mira | 1,105.99 mi (1,779.92 km) |
| Haddington to Miranda do Corvo | 1,124.29 mi (1,809.36 km) |
| Haddington to Mirandela | 1,019.23 mi (1,640.30 km) |
| Haddington to Mogadouro | 1,025.76 mi (1,650.80 km) |
| Haddington to Moimenta da Beira | 1,057.53 mi (1,701.94 km) |
| Haddington to Moita | 1,229.33 mi (1,978.41 km) |
| Haddington to Moncao | 992.52 mi (1,597.31 km) |
