| Sliven to Montilla | 1,663.46 mi (2,677.08 km) |
| Sliven to Montmelo | 1,232.55 mi (1,983.60 km) |
| Sliven to Montornes del Valles | 1,231.83 mi (1,982.45 km) |
| Sliven to Montoro | 1,639.77 mi (2,638.95 km) |
| Sliven to Monzon | 1,331.82 mi (2,143.36 km) |
| Sliven to Mora | 1,570.94 mi (2,528.19 km) |
| Sliven to Moralzarzal | 1,561.49 mi (2,512.97 km) |
| Sliven to Moron de la Frontera | 1,717.17 mi (2,763.51 km) |
| Sliven to Mostoles | 1,562.62 mi (2,514.79 km) |
| Sliven to Motril | 1,629.25 mi (2,622.02 km) |
| Sliven to Muchamiel | 1,430.16 mi (2,301.62 km) |
| Sliven to Mula | 1,492.31 mi (2,401.63 km) |
| Sliven to Munguia | 1,467.28 mi (2,361.36 km) |
| Sliven to Murcia | 1,475.44 mi (2,374.48 km) |
| Sliven to Muro del Alcoy | 1,421.03 mi (2,286.93 km) |
