| Bel Air South to Mangualde | 3,529.35 mi (5,679.93 km) |
| Bel Air South to Marco de Canavezes | 3,495.36 mi (5,625.23 km) |
| Bel Air South to Marinha Grande | 3,495.04 mi (5,624.73 km) |
| Bel Air South to Massama | 3,505.16 mi (5,641.01 km) |
| Bel Air South to Matosinhos | 3,468.82 mi (5,582.53 km) |
| Bel Air South to Mealhada | 3,501.78 mi (5,635.56 km) |
| Bel Air South to Melgaco | 3,465.97 mi (5,577.94 km) |
| Bel Air South to Melres | 3,486.31 mi (5,610.68 km) |
| Bel Air South to Mira | 3,486.68 mi (5,611.27 km) |
| Bel Air South to Miranda do Corvo | 3,514.99 mi (5,656.83 km) |
| Bel Air South to Mirandela | 3,534.04 mi (5,687.49 km) |
| Bel Air South to Mogadouro | 3,560.32 mi (5,729.78 km) |
| Bel Air South to Moimenta da Beira | 3,526.54 mi (5,675.41 km) |
| Bel Air South to Moita | 3,522.52 mi (5,668.94 km) |
| Bel Air South to Moncao | 3,456.86 mi (5,563.28 km) |
