| Hoorn to Smolyan | 1,191.83 mi (1,918.07 km) |
| Hoorn to Sofia | 1,087.58 mi (1,750.28 km) |
| Hoorn to Sopot | 1,141.22 mi (1,836.62 km) |
| Hoorn to Sozopol | 1,262.22 mi (2,031.34 km) |
| Hoorn to Sredets | 1,246.39 mi (2,005.87 km) |
| Hoorn to Stamboliyski | 1,158.52 mi (1,864.46 km) |
| Hoorn to Stara Zagora | 1,184.64 mi (1,906.49 km) |
| Hoorn to Svilengrad | 1,236.95 mi (1,990.68 km) |
| Hoorn to Svishtov | 1,118.35 mi (1,799.82 km) |
| Hoorn to Targovishte | 1,181.70 mi (1,901.77 km) |
| Hoorn to Teteven | 1,110.79 mi (1,787.65 km) |
| Hoorn to Troyan | 1,128.85 mi (1,816.71 km) |
| Hoorn to Tryavna | 1,158.57 mi (1,864.54 km) |
| Hoorn to Tutrakan | 1,147.60 mi (1,846.88 km) |
| Hoorn to Varna | 1,234.37 mi (1,986.52 km) |
