| Sintra to Montilla | 271.50 mi (436.93 km) |
| Sintra to Montmelo | 642.62 mi (1,034.20 km) |
| Sintra to Montornes del Valles | 643.31 mi (1,035.31 km) |
| Sintra to Montoro | 276.28 mi (444.63 km) |
| Sintra to Monzon | 547.81 mi (881.61 km) |
| Sintra to Mora | 306.37 mi (493.06 km) |
| Sintra to Moralzarzal | 315.67 mi (508.02 km) |
| Sintra to Moron de la Frontera | 243.72 mi (392.22 km) |
| Sintra to Mostoles | 312.55 mi (503.00 km) |
| Sintra to Motril | 350.44 mi (563.98 km) |
| Sintra to Muchamiel | 483.38 mi (777.93 km) |
| Sintra to Mula | 430.57 mi (692.94 km) |
| Sintra to Munguia | 463.56 mi (746.02 km) |
| Sintra to Murcia | 450.56 mi (725.10 km) |
| Sintra to Muro del Alcoy | 481.93 mi (775.59 km) |
