| Greenville to Mangualde | 3,973.25 mi (6,394.33 km) |
| Greenville to Marco de Canavezes | 3,940.49 mi (6,341.61 km) |
| Greenville to Marinha Grande | 3,935.59 mi (6,333.71 km) |
| Greenville to Massama | 3,942.42 mi (6,344.70 km) |
| Greenville to Matosinhos | 3,913.55 mi (6,298.24 km) |
| Greenville to Mealhada | 3,944.53 mi (6,348.10 km) |
| Greenville to Melgaco | 3,913.40 mi (6,298.01 km) |
| Greenville to Melres | 3,930.96 mi (6,326.26 km) |
| Greenville to Mira | 3,929.34 mi (6,323.66 km) |
| Greenville to Miranda do Corvo | 3,957.05 mi (6,368.26 km) |
| Greenville to Mirandela | 3,980.66 mi (6,406.25 km) |
| Greenville to Mogadouro | 4,006.90 mi (6,448.48 km) |
| Greenville to Moimenta da Beira | 3,971.55 mi (6,391.59 km) |
| Greenville to Moita | 3,959.73 mi (6,372.57 km) |
| Greenville to Moncao | 3,904.04 mi (6,282.95 km) |
