| IJsselstein to Smolyan | 1,170.41 mi (1,883.59 km) |
| IJsselstein to Sofia | 1,066.32 mi (1,716.07 km) |
| IJsselstein to Sopot | 1,121.65 mi (1,805.12 km) |
| IJsselstein to Sozopol | 1,245.64 mi (2,004.67 km) |
| IJsselstein to Sredets | 1,229.14 mi (1,978.12 km) |
| IJsselstein to Stamboliyski | 1,137.79 mi (1,831.10 km) |
| IJsselstein to Stara Zagora | 1,165.76 mi (1,876.11 km) |
| IJsselstein to Svilengrad | 1,217.60 mi (1,959.53 km) |
| IJsselstein to Svishtov | 1,101.30 mi (1,772.36 km) |
| IJsselstein to Targovishte | 1,165.38 mi (1,875.49 km) |
| IJsselstein to Teteven | 1,091.10 mi (1,755.96 km) |
| IJsselstein to Troyan | 1,109.65 mi (1,785.81 km) |
| IJsselstein to Tryavna | 1,140.28 mi (1,835.11 km) |
| IJsselstein to Tutrakan | 1,132.85 mi (1,823.15 km) |
| IJsselstein to Varna | 1,219.45 mi (1,962.52 km) |
