| Konstancin-Jeziorna to Smolyan | 744.75 mi (1,198.56 km) |
| Konstancin-Jeziorna to Sofia | 656.45 mi (1,056.46 km) |
| Konstancin-Jeziorna to Sopot | 673.37 mi (1,083.68 km) |
| Konstancin-Jeziorna to Sozopol | 735.08 mi (1,183.00 km) |
| Konstancin-Jeziorna to Sredets | 729.96 mi (1,174.76 km) |
| Konstancin-Jeziorna to Stamboliyski | 705.79 mi (1,135.87 km) |
| Konstancin-Jeziorna to Stara Zagora | 699.46 mi (1,125.68 km) |
| Konstancin-Jeziorna to Svilengrad | 751.61 mi (1,209.60 km) |
| Konstancin-Jeziorna to Svishtov | 616.76 mi (992.59 km) |
| Konstancin-Jeziorna to Targovishte | 660.74 mi (1,063.35 km) |
| Konstancin-Jeziorna to Teteven | 650.03 mi (1,046.12 km) |
| Konstancin-Jeziorna to Troyan | 657.29 mi (1,057.81 km) |
| Konstancin-Jeziorna to Tryavna | 668.57 mi (1,075.96 km) |
| Konstancin-Jeziorna to Tutrakan | 609.95 mi (981.62 km) |
| Konstancin-Jeziorna to Varna | 688.84 mi (1,108.58 km) |
