| Suffolk to Mangualde | 3,629.83 mi (5,841.65 km) |
| Suffolk to Marco de Canavezes | 3,597.46 mi (5,789.56 km) |
| Suffolk to Marinha Grande | 3,591.33 mi (5,779.69 km) |
| Suffolk to Massama | 3,597.56 mi (5,789.72 km) |
| Suffolk to Matosinhos | 3,570.39 mi (5,745.99 km) |
| Suffolk to Mealhada | 3,600.79 mi (5,794.92 km) |
| Suffolk to Melgaco | 3,571.21 mi (5,747.30 km) |
| Suffolk to Melres | 3,587.77 mi (5,773.96 km) |
| Suffolk to Mira | 3,585.59 mi (5,770.44 km) |
| Suffolk to Miranda do Corvo | 3,613.14 mi (5,814.78 km) |
| Suffolk to Mirandela | 3,638.12 mi (5,855.00 km) |
| Suffolk to Mogadouro | 3,664.34 mi (5,897.19 km) |
| Suffolk to Moimenta da Beira | 3,628.47 mi (5,839.45 km) |
| Suffolk to Moita | 3,614.87 mi (5,817.57 km) |
| Suffolk to Moncao | 3,561.75 mi (5,732.08 km) |
