| Zwijndrecht to Smolyan | 1,177.78 mi (1,895.46 km) |
| Zwijndrecht to Sofia | 1,073.83 mi (1,728.16 km) |
| Zwijndrecht to Sopot | 1,130.00 mi (1,818.56 km) |
| Zwijndrecht to Sozopol | 1,255.41 mi (2,020.39 km) |
| Zwijndrecht to Sredets | 1,238.60 mi (1,993.34 km) |
| Zwijndrecht to Stamboliyski | 1,145.55 mi (1,843.58 km) |
| Zwijndrecht to Stara Zagora | 1,174.45 mi (1,890.09 km) |
| Zwijndrecht to Svilengrad | 1,226.02 mi (1,973.09 km) |
| Zwijndrecht to Svishtov | 1,110.90 mi (1,787.81 km) |
| Zwijndrecht to Targovishte | 1,175.29 mi (1,891.45 km) |
| Zwijndrecht to Teteven | 1,099.41 mi (1,769.34 km) |
| Zwijndrecht to Troyan | 1,118.20 mi (1,799.58 km) |
| Zwijndrecht to Tryavna | 1,149.27 mi (1,849.57 km) |
| Zwijndrecht to Tutrakan | 1,143.51 mi (1,840.30 km) |
| Zwijndrecht to Varna | 1,229.99 mi (1,979.48 km) |
