| Klosterneuburg to Sofia | 514.62 mi (828.19 km) |
| Klosterneuburg to Sopot | 564.66 mi (908.74 km) |
| Klosterneuburg to Sozopol | 685.04 mi (1,102.46 km) |
| Klosterneuburg to Sredets | 668.80 mi (1,076.33 km) |
| Klosterneuburg to Stamboliyski | 583.90 mi (939.70 km) |
| Klosterneuburg to Stara Zagora | 607.32 mi (977.38 km) |
| Klosterneuburg to Svilengrad | 660.00 mi (1,062.16 km) |
| Klosterneuburg to Svishtov | 540.83 mi (870.38 km) |
| Klosterneuburg to Targovishte | 604.75 mi (973.24 km) |
| Klosterneuburg to Teteven | 534.45 mi (860.12 km) |
| Klosterneuburg to Troyan | 551.87 mi (888.15 km) |
| Klosterneuburg to Tryavna | 580.94 mi (934.94 km) |
| Klosterneuburg to Tutrakan | 573.07 mi (922.27 km) |
| Klosterneuburg to Varna | 659.41 mi (1,061.21 km) |
| Klosterneuburg to Veliki Preslav | 617.53 mi (993.81 km) |
