| South Holland to Smolyan | 5,306.34 mi (8,539.72 km) |
| South Holland to Sofia | 5,202.22 mi (8,372.17 km) |
| South Holland to Sopot | 5,256.38 mi (8,459.32 km) |
| South Holland to Sozopol | 5,373.33 mi (8,647.53 km) |
| South Holland to Sredets | 5,358.95 mi (8,624.40 km) |
| South Holland to Stamboliyski | 5,273.54 mi (8,486.94 km) |
| South Holland to Stara Zagora | 5,299.43 mi (8,528.61 km) |
| South Holland to Svilengrad | 5,352.00 mi (8,613.21 km) |
| South Holland to Svishtov | 5,230.98 mi (8,418.44 km) |
| South Holland to Targovishte | 5,292.61 mi (8,517.63 km) |
| South Holland to Teteven | 5,225.97 mi (8,410.39 km) |
| South Holland to Troyan | 5,243.87 mi (8,439.19 km) |
| South Holland to Tryavna | 5,272.85 mi (8,485.84 km) |
| South Holland to Tutrakan | 5,254.41 mi (8,456.16 km) |
| South Holland to Varna | 5,341.01 mi (8,595.53 km) |
