| Belp to Smolyan | 924.68 mi (1,488.14 km) |
| Belp to Sofia | 826.75 mi (1,330.52 km) |
| Belp to Sopot | 893.35 mi (1,437.71 km) |
| Belp to Sozopol | 1,036.61 mi (1,668.26 km) |
| Belp to Sredets | 1,015.30 mi (1,633.96 km) |
| Belp to Stamboliyski | 899.16 mi (1,447.06 km) |
| Belp to Stara Zagora | 941.18 mi (1,514.69 km) |
| Belp to Svilengrad | 986.89 mi (1,588.24 km) |
| Belp to Svishtov | 895.15 mi (1,440.61 km) |
| Belp to Targovishte | 962.01 mi (1,548.20 km) |
| Belp to Teteven | 863.39 mi (1,389.49 km) |
| Belp to Troyan | 885.10 mi (1,424.43 km) |
| Belp to Tryavna | 921.81 mi (1,483.51 km) |
| Belp to Tutrakan | 944.45 mi (1,519.94 km) |
| Belp to Varna | 1,025.27 mi (1,650.02 km) |
