| s-Gravendeel to Smolyan | 1,177.91 mi (1,895.67 km) |
| s-Gravendeel to Sofia | 1,073.98 mi (1,728.40 km) |
| s-Gravendeel to Sopot | 1,130.27 mi (1,818.99 km) |
| s-Gravendeel to Sozopol | 1,255.87 mi (2,021.12 km) |
| s-Gravendeel to Sredets | 1,239.01 mi (1,994.00 km) |
| s-Gravendeel to Stamboliyski | 1,145.73 mi (1,843.87 km) |
| s-Gravendeel to Stara Zagora | 1,174.75 mi (1,890.58 km) |
| s-Gravendeel to Svilengrad | 1,226.29 mi (1,973.53 km) |
| s-Gravendeel to Svishtov | 1,111.33 mi (1,788.52 km) |
| s-Gravendeel to Targovishte | 1,175.77 mi (1,892.22 km) |
| s-Gravendeel to Teteven | 1,099.67 mi (1,769.75 km) |
| s-Gravendeel to Troyan | 1,118.49 mi (1,800.04 km) |
| s-Gravendeel to Tryavna | 1,149.62 mi (1,850.14 km) |
| s-Gravendeel to Tutrakan | 1,144.09 mi (1,841.24 km) |
| s-Gravendeel to Varna | 1,230.56 mi (1,980.39 km) |
