| Keerbergen to Sofia | 1,048.85 mi (1,687.95 km) |
| Keerbergen to Sopot | 1,107.10 mi (1,781.71 km) |
| Keerbergen to Sozopol | 1,236.15 mi (1,989.40 km) |
| Keerbergen to Sredets | 1,218.51 mi (1,961.00 km) |
| Keerbergen to Stamboliyski | 1,121.07 mi (1,804.18 km) |
| Keerbergen to Stara Zagora | 1,152.35 mi (1,854.53 km) |
| Keerbergen to Svilengrad | 1,203.18 mi (1,936.32 km) |
| Keerbergen to Svishtov | 1,091.38 mi (1,756.41 km) |
| Keerbergen to Targovishte | 1,156.55 mi (1,861.29 km) |
| Keerbergen to Teteven | 1,076.45 mi (1,732.37 km) |
| Keerbergen to Troyan | 1,095.84 mi (1,763.58 km) |
| Keerbergen to Tryavna | 1,128.02 mi (1,815.38 km) |
| Keerbergen to Tutrakan | 1,126.94 mi (1,813.63 km) |
| Keerbergen to Varna | 1,212.97 mi (1,952.08 km) |
| Keerbergen to Veliki Preslav | 1,169.49 mi (1,882.11 km) |
