| Schoonhoven to Smolyan | 1,174.86 mi (1,890.76 km) |
| Schoonhoven to Sofia | 1,070.82 mi (1,723.32 km) |
| Schoonhoven to Sopot | 1,126.48 mi (1,812.90 km) |
| Schoonhoven to Sozopol | 1,251.03 mi (2,013.34 km) |
| Schoonhoven to Sredets | 1,234.41 mi (1,986.59 km) |
| Schoonhoven to Stamboliyski | 1,142.39 mi (1,838.50 km) |
| Schoonhoven to Stara Zagora | 1,170.73 mi (1,884.10 km) |
| Schoonhoven to Svilengrad | 1,222.46 mi (1,967.37 km) |
| Schoonhoven to Svishtov | 1,106.61 mi (1,780.92 km) |
| Schoonhoven to Targovishte | 1,170.82 mi (1,884.25 km) |
| Schoonhoven to Teteven | 1,095.92 mi (1,763.71 km) |
| Schoonhoven to Troyan | 1,114.57 mi (1,793.72 km) |
| Schoonhoven to Tryavna | 1,145.36 mi (1,843.29 km) |
| Schoonhoven to Tutrakan | 1,138.57 mi (1,832.36 km) |
| Schoonhoven to Varna | 1,225.13 mi (1,971.66 km) |
