| Opglabbeek to Sofia | 1,013.38 mi (1,630.88 km) |
| Opglabbeek to Sopot | 1,070.78 mi (1,723.25 km) |
| Opglabbeek to Sozopol | 1,198.51 mi (1,928.82 km) |
| Opglabbeek to Sredets | 1,181.15 mi (1,900.88 km) |
| Opglabbeek to Stamboliyski | 1,085.40 mi (1,746.79 km) |
| Opglabbeek to Stara Zagora | 1,115.72 mi (1,795.58 km) |
| Opglabbeek to Svilengrad | 1,166.85 mi (1,877.87 km) |
| Opglabbeek to Svishtov | 1,053.79 mi (1,695.91 km) |
| Opglabbeek to Targovishte | 1,118.72 mi (1,800.41 km) |
| Opglabbeek to Teteven | 1,040.14 mi (1,673.94 km) |
| Opglabbeek to Troyan | 1,059.30 mi (1,704.77 km) |
| Opglabbeek to Tryavna | 1,091.06 mi (1,755.90 km) |
| Opglabbeek to Tutrakan | 1,088.42 mi (1,751.64 km) |
| Opglabbeek to Varna | 1,174.61 mi (1,890.34 km) |
| Opglabbeek to Veliki Preslav | 1,131.62 mi (1,821.17 km) |
