| Fort Pierce to Mangualde | 4,138.77 mi (6,660.71 km) |
| Fort Pierce to Marco de Canavezes | 4,110.88 mi (6,615.82 km) |
| Fort Pierce to Marinha Grande | 4,090.15 mi (6,582.47 km) |
| Fort Pierce to Massama | 4,086.34 mi (6,576.33 km) |
| Fort Pierce to Matosinhos | 4,082.81 mi (6,570.65 km) |
| Fort Pierce to Mealhada | 4,106.40 mi (6,608.62 km) |
| Fort Pierce to Melgaco | 4,092.73 mi (6,586.62 km) |
| Fort Pierce to Melres | 4,099.68 mi (6,597.80 km) |
| Fort Pierce to Mira | 4,091.11 mi (6,584.01 km) |
| Fort Pierce to Miranda do Corvo | 4,116.38 mi (6,624.68 km) |
| Fort Pierce to Mirandela | 4,155.98 mi (6,688.41 km) |
| Fort Pierce to Mogadouro | 4,181.72 mi (6,729.83 km) |
| Fort Pierce to Moimenta da Beira | 4,141.05 mi (6,664.38 km) |
| Fort Pierce to Moita | 4,103.26 mi (6,603.55 km) |
| Fort Pierce to Moncao | 4,082.53 mi (6,570.20 km) |
