| Sint-Gillis-Waas to Sofia | 1,075.36 mi (1,730.62 km) |
| Sint-Gillis-Waas to Sopot | 1,133.45 mi (1,824.11 km) |
| Sint-Gillis-Waas to Sozopol | 1,262.13 mi (2,031.20 km) |
| Sint-Gillis-Waas to Sredets | 1,244.58 mi (2,002.96 km) |
| Sint-Gillis-Waas to Stamboliyski | 1,147.55 mi (1,846.80 km) |
| Sint-Gillis-Waas to Stara Zagora | 1,178.63 mi (1,896.82 km) |
| Sint-Gillis-Waas to Svilengrad | 1,229.53 mi (1,978.73 km) |
| Sint-Gillis-Waas to Svishtov | 1,117.37 mi (1,798.23 km) |
| Sint-Gillis-Waas to Targovishte | 1,182.46 mi (1,902.98 km) |
| Sint-Gillis-Waas to Teteven | 1,102.80 mi (1,774.78 km) |
| Sint-Gillis-Waas to Troyan | 1,122.13 mi (1,805.90 km) |
| Sint-Gillis-Waas to Tryavna | 1,154.21 mi (1,857.52 km) |
| Sint-Gillis-Waas to Tutrakan | 1,152.54 mi (1,854.83 km) |
| Sint-Gillis-Waas to Varna | 1,238.65 mi (1,993.41 km) |
| Sint-Gillis-Waas to Veliki Preslav | 1,195.38 mi (1,923.77 km) |
