| Monzon to Smolyan | 1,259.38 mi (2,026.78 km) |
| Monzon to Sofia | 1,180.00 mi (1,899.03 km) |
| Monzon to Sopot | 1,252.13 mi (2,015.10 km) |
| Monzon to Sozopol | 1,403.16 mi (2,258.17 km) |
| Monzon to Sredets | 1,378.52 mi (2,218.51 km) |
| Monzon to Stamboliyski | 1,245.36 mi (2,004.21 km) |
| Monzon to Stara Zagora | 1,299.35 mi (2,091.10 km) |
| Monzon to Svilengrad | 1,333.77 mi (2,146.50 km) |
| Monzon to Svishtov | 1,276.78 mi (2,054.78 km) |
| Monzon to Targovishte | 1,340.38 mi (2,157.13 km) |
| Monzon to Teteven | 1,225.96 mi (1,972.99 km) |
| Monzon to Troyan | 1,248.85 mi (2,009.83 km) |
| Monzon to Tryavna | 1,288.44 mi (2,073.54 km) |
| Monzon to Tutrakan | 1,338.17 mi (2,153.58 km) |
| Monzon to Varna | 1,407.41 mi (2,265.01 km) |
