| Onex to Montijo | 817.83 mi (1,316.16 km) |
| Onex to Montilla | 809.67 mi (1,303.04 km) |
| Onex to Montmelo | 372.79 mi (599.94 km) |
| Onex to Montornes del Valles | 372.97 mi (600.24 km) |
| Onex to Montoro | 777.93 mi (1,251.95 km) |
| Onex to Monzon | 416.09 mi (669.64 km) |
| Onex to Mora | 670.85 mi (1,079.63 km) |
| Onex to Moralzarzal | 631.74 mi (1,016.68 km) |
| Onex to Moron de la Frontera | 862.88 mi (1,388.67 km) |
| Onex to Mostoles | 643.27 mi (1,035.24 km) |
| Onex to Motril | 818.89 mi (1,317.88 km) |
| Onex to Muchamiel | 632.01 mi (1,017.12 km) |
| Onex to Mula | 683.24 mi (1,099.56 km) |
| Onex to Munguia | 480.07 mi (772.60 km) |
| Onex to Murcia | 676.27 mi (1,088.36 km) |
