| Issoudun to Smolyan | 1,178.13 mi (1,896.02 km) |
| Issoudun to Sofia | 1,082.22 mi (1,741.66 km) |
| Issoudun to Sopot | 1,150.00 mi (1,850.75 km) |
| Issoudun to Sozopol | 1,294.72 mi (2,083.65 km) |
| Issoudun to Sredets | 1,273.02 mi (2,048.73 km) |
| Issoudun to Stamboliyski | 1,154.17 mi (1,857.46 km) |
| Issoudun to Stara Zagora | 1,198.03 mi (1,928.04 km) |
| Issoudun to Svilengrad | 1,242.57 mi (1,999.72 km) |
| Issoudun to Svishtov | 1,154.02 mi (1,857.22 km) |
| Issoudun to Targovishte | 1,220.84 mi (1,964.76 km) |
| Issoudun to Teteven | 1,120.32 mi (1,802.97 km) |
| Issoudun to Troyan | 1,142.29 mi (1,838.34 km) |
| Issoudun to Tryavna | 1,179.49 mi (1,898.20 km) |
| Issoudun to Tutrakan | 1,204.02 mi (1,937.69 km) |
| Issoudun to Varna | 1,284.48 mi (2,067.17 km) |
