| Sterling to Mangualde | 3,596.90 mi (5,788.66 km) |
| Sterling to Marco de Canavezes | 3,562.97 mi (5,734.05 km) |
| Sterling to Marinha Grande | 3,562.42 mi (5,733.16 km) |
| Sterling to Massama | 3,572.34 mi (5,749.13 km) |
| Sterling to Matosinhos | 3,536.42 mi (5,691.31 km) |
| Sterling to Mealhada | 3,569.27 mi (5,744.19 km) |
| Sterling to Melgaco | 3,533.68 mi (5,686.91 km) |
| Sterling to Melres | 3,553.91 mi (5,719.46 km) |
| Sterling to Mira | 3,554.17 mi (5,719.89 km) |
| Sterling to Miranda do Corvo | 3,582.45 mi (5,765.40 km) |
| Sterling to Mirandela | 3,601.72 mi (5,796.40 km) |
| Sterling to Mogadouro | 3,628.00 mi (5,838.70 km) |
| Sterling to Moimenta da Beira | 3,594.15 mi (5,784.22 km) |
| Sterling to Moita | 3,589.69 mi (5,777.06 km) |
| Sterling to Moncao | 3,524.56 mi (5,672.23 km) |
