| Mostoles to Smolyan | 1,486.26 mi (2,391.90 km) |
| Mostoles to Sofia | 1,410.31 mi (2,269.68 km) |
| Mostoles to Sopot | 1,482.53 mi (2,385.90 km) |
| Mostoles to Sozopol | 1,633.53 mi (2,628.91 km) |
| Mostoles to Sredets | 1,608.58 mi (2,588.77 km) |
| Mostoles to Stamboliyski | 1,474.08 mi (2,372.31 km) |
| Mostoles to Stara Zagora | 1,529.29 mi (2,461.16 km) |
| Mostoles to Svilengrad | 1,561.79 mi (2,513.47 km) |
| Mostoles to Svishtov | 1,509.83 mi (2,429.83 km) |
| Mostoles to Targovishte | 1,572.68 mi (2,530.98 km) |
| Mostoles to Teteven | 1,457.07 mi (2,344.92 km) |
| Mostoles to Troyan | 1,479.93 mi (2,381.71 km) |
| Mostoles to Tryavna | 1,519.59 mi (2,445.55 km) |
| Mostoles to Tutrakan | 1,572.23 mi (2,530.26 km) |
| Mostoles to Varna | 1,639.81 mi (2,639.02 km) |
