| Leighton Buzzard to Montijo | 943.15 mi (1,517.85 km) |
| Leighton Buzzard to Montilla | 1,008.93 mi (1,623.71 km) |
| Leighton Buzzard to Montmelo | 728.93 mi (1,173.10 km) |
| Leighton Buzzard to Montornes del Valles | 729.78 mi (1,174.47 km) |
| Leighton Buzzard to Montoro | 977.13 mi (1,572.53 km) |
| Leighton Buzzard to Monzon | 692.54 mi (1,114.53 km) |
| Leighton Buzzard to Mora | 858.19 mi (1,381.13 km) |
| Leighton Buzzard to Moralzarzal | 792.38 mi (1,275.22 km) |
| Leighton Buzzard to Moron de la Frontera | 1,048.49 mi (1,687.38 km) |
| Leighton Buzzard to Mostoles | 814.69 mi (1,311.12 km) |
| Leighton Buzzard to Motril | 1,057.15 mi (1,701.31 km) |
| Leighton Buzzard to Muchamiel | 933.02 mi (1,501.55 km) |
| Leighton Buzzard to Mula | 959.48 mi (1,544.14 km) |
| Leighton Buzzard to Munguia | 600.18 mi (965.89 km) |
| Leighton Buzzard to Murcia | 962.76 mi (1,549.42 km) |
