| Union City to Mangualde | 5,622.27 mi (9,048.17 km) |
| Union City to Marco de Canavezes | 5,580.15 mi (8,980.38 km) |
| Union City to Marinha Grande | 5,616.94 mi (9,039.59 km) |
| Union City to Massama | 5,649.78 mi (9,092.45 km) |
| Union City to Matosinhos | 5,559.10 mi (8,946.51 km) |
| Union City to Mealhada | 5,606.13 mi (9,022.20 km) |
| Union City to Melgaco | 5,532.00 mi (8,902.89 km) |
| Union City to Melres | 5,576.05 mi (8,973.79 km) |
| Union City to Mira | 5,592.83 mi (9,000.78 km) |
| Union City to Miranda do Corvo | 5,623.94 mi (9,050.86 km) |
| Union City to Mirandela | 5,602.63 mi (9,016.56 km) |
| Union City to Mogadouro | 5,627.34 mi (9,056.34 km) |
| Union City to Moimenta da Beira | 5,610.18 mi (9,028.72 km) |
| Union City to Moita | 5,666.36 mi (9,119.12 km) |
| Union City to Moncao | 5,525.97 mi (8,893.19 km) |
