| Sint-Martens-Lennik to Sofia | 1,061.87 mi (1,708.92 km) |
| Sint-Martens-Lennik to Sopot | 1,120.97 mi (1,804.02 km) |
| Sint-Martens-Lennik to Sozopol | 1,251.39 mi (2,013.92 km) |
| Sint-Martens-Lennik to Sredets | 1,233.43 mi (1,985.02 km) |
| Sint-Martens-Lennik to Stamboliyski | 1,134.26 mi (1,825.42 km) |
| Sint-Martens-Lennik to Stara Zagora | 1,166.52 mi (1,877.33 km) |
| Sint-Martens-Lennik to Svilengrad | 1,217.01 mi (1,958.58 km) |
| Sint-Martens-Lennik to Svishtov | 1,106.60 mi (1,780.90 km) |
| Sint-Martens-Lennik to Targovishte | 1,172.03 mi (1,886.20 km) |
| Sint-Martens-Lennik to Teteven | 1,090.31 mi (1,754.68 km) |
| Sint-Martens-Lennik to Troyan | 1,109.93 mi (1,786.26 km) |
| Sint-Martens-Lennik to Tryavna | 1,142.55 mi (1,838.75 km) |
| Sint-Martens-Lennik to Tutrakan | 1,143.22 mi (1,839.84 km) |
| Sint-Martens-Lennik to Varna | 1,229.05 mi (1,977.96 km) |
| Sint-Martens-Lennik to Veliki Preslav | 1,185.00 mi (1,907.07 km) |
