| Kostanjevica na Krki to Smolyan | 548.37 mi (882.52 km) |
| Kostanjevica na Krki to Sofia | 447.14 mi (719.61 km) |
| Kostanjevica na Krki to Sopot | 511.21 mi (822.72 km) |
| Kostanjevica na Krki to Sozopol | 652.38 mi (1,049.91 km) |
| Kostanjevica na Krki to Sredets | 631.46 mi (1,016.24 km) |
| Kostanjevica na Krki to Stamboliyski | 519.95 mi (836.77 km) |
| Kostanjevica na Krki to Stara Zagora | 558.61 mi (898.99 km) |
| Kostanjevica na Krki to Svilengrad | 606.02 mi (975.29 km) |
| Kostanjevica na Krki to Svishtov | 510.54 mi (821.64 km) |
| Kostanjevica na Krki to Targovishte | 577.40 mi (929.24 km) |
| Kostanjevica na Krki to Teteven | 480.89 mi (773.92 km) |
| Kostanjevica na Krki to Troyan | 502.15 mi (808.13 km) |
| Kostanjevica na Krki to Tryavna | 538.13 mi (866.03 km) |
| Kostanjevica na Krki to Tutrakan | 560.67 mi (902.31 km) |
| Kostanjevica na Krki to Varna | 640.76 mi (1,031.20 km) |
