| Mission to Montijo | 5,191.35 mi (8,354.67 km) |
| Mission to Montilla | 5,325.96 mi (8,571.30 km) |
| Mission to Montmelo | 5,543.41 mi (8,921.26 km) |
| Mission to Montornes del Valles | 5,544.51 mi (8,923.03 km) |
| Mission to Montoro | 5,326.65 mi (8,572.42 km) |
| Mission to Monzon | 5,437.12 mi (8,750.20 km) |
| Mission to Mora | 5,311.02 mi (8,547.27 km) |
| Mission to Moralzarzal | 5,274.78 mi (8,488.93 km) |
| Mission to Moron de la Frontera | 5,297.12 mi (8,524.89 km) |
| Mission to Mostoles | 5,288.98 mi (8,511.80 km) |
| Mission to Motril | 5,405.38 mi (8,699.11 km) |
| Mission to Muchamiel | 5,510.06 mi (8,867.58 km) |
| Mission to Mula | 5,469.64 mi (8,802.53 km) |
| Mission to Munguia | 5,255.43 mi (8,457.80 km) |
| Mission to Murcia | 5,489.04 mi (8,833.76 km) |
