| Grapevine to Mangualde | 4,754.23 mi (7,651.20 km) |
| Grapevine to Marco de Canavezes | 4,718.61 mi (7,593.87 km) |
| Grapevine to Marinha Grande | 4,724.03 mi (7,602.60 km) |
| Grapevine to Massama | 4,737.23 mi (7,623.83 km) |
| Grapevine to Matosinhos | 4,692.75 mi (7,552.25 km) |
| Grapevine to Mealhada | 4,728.23 mi (7,609.35 km) |
| Grapevine to Melgaco | 4,685.68 mi (7,540.88 km) |
| Grapevine to Melres | 4,710.31 mi (7,580.51 km) |
| Grapevine to Mira | 4,713.29 mi (7,585.30 km) |
| Grapevine to Miranda do Corvo | 4,742.24 mi (7,631.90 km) |
| Grapevine to Mirandela | 4,754.89 mi (7,652.25 km) |
| Grapevine to Mogadouro | 4,781.15 mi (7,694.51 km) |
| Grapevine to Moimenta da Beira | 4,749.89 mi (7,644.20 km) |
| Grapevine to Moita | 4,754.59 mi (7,651.77 km) |
| Grapevine to Moncao | 4,677.04 mi (7,526.96 km) |
