| Schwechat to Sofia | 501.33 mi (806.81 km) |
| Schwechat to Sopot | 551.68 mi (887.84 km) |
| Schwechat to Sozopol | 672.74 mi (1,082.68 km) |
| Schwechat to Sredets | 656.34 mi (1,056.28 km) |
| Schwechat to Stamboliyski | 570.73 mi (918.50 km) |
| Schwechat to Stara Zagora | 594.48 mi (956.73 km) |
| Schwechat to Svilengrad | 647.08 mi (1,041.38 km) |
| Schwechat to Svishtov | 528.42 mi (850.42 km) |
| Schwechat to Targovishte | 592.53 mi (953.58 km) |
| Schwechat to Teteven | 521.43 mi (839.16 km) |
| Schwechat to Troyan | 538.95 mi (867.36 km) |
| Schwechat to Tryavna | 568.23 mi (914.48 km) |
| Schwechat to Tutrakan | 561.35 mi (903.40 km) |
| Schwechat to Varna | 647.57 mi (1,042.17 km) |
| Schwechat to Veliki Preslav | 605.34 mi (974.20 km) |
