| Sugar Land to Mangualde | 4,820.21 mi (7,757.38 km) |
| Sugar Land to Marco de Canavezes | 4,786.41 mi (7,702.99 km) |
| Sugar Land to Marinha Grande | 4,784.94 mi (7,700.61 km) |
| Sugar Land to Massama | 4,793.59 mi (7,714.55 km) |
| Sugar Land to Matosinhos | 4,759.82 mi (7,660.19 km) |
| Sugar Land to Mealhada | 4,792.37 mi (7,712.58 km) |
| Sugar Land to Melgaco | 4,757.12 mi (7,655.85 km) |
| Sugar Land to Melres | 4,777.30 mi (7,688.33 km) |
| Sugar Land to Mira | 4,777.25 mi (7,688.24 km) |
| Sugar Land to Miranda do Corvo | 4,805.40 mi (7,733.54 km) |
| Sugar Land to Mirandela | 4,825.20 mi (7,765.41 km) |
| Sugar Land to Mogadouro | 4,851.48 mi (7,807.70 km) |
| Sugar Land to Moimenta da Beira | 4,817.58 mi (7,753.15 km) |
| Sugar Land to Moita | 4,810.93 mi (7,742.45 km) |
| Sugar Land to Moncao | 4,748.02 mi (7,641.20 km) |
