| Sliven to Masquefa | 1,255.37 mi (2,020.32 km) |
| Sliven to Matadepera | 1,243.29 mi (2,000.88 km) |
| Sliven to Mazarron | 1,494.71 mi (2,405.51 km) |
| Sliven to Meco | 1,531.13 mi (2,464.12 km) |
| Sliven to Medina del Campo | 1,598.47 mi (2,572.49 km) |
| Sliven to Medina Sidonia | 1,758.83 mi (2,830.56 km) |
| Sliven to Mejorada del Campo | 1,537.07 mi (2,473.67 km) |
| Sliven to Meliana | 1,400.16 mi (2,253.35 km) |
| Sliven to Mengibar | 1,611.80 mi (2,593.95 km) |
| Sliven to Merida | 1,717.73 mi (2,764.43 km) |
| Sliven to Miajadas | 1,698.57 mi (2,733.59 km) |
| Sliven to Mieres | 1,613.87 mi (2,597.28 km) |
| Sliven to Miguelturra | 1,595.23 mi (2,567.27 km) |
| Sliven to Mijas | 1,690.01 mi (2,719.81 km) |
| Sliven to Miranda de Ebro | 1,478.97 mi (2,380.17 km) |
