| Vlaardingen to Smolyan | 1,191.77 mi (1,917.97 km) |
| Vlaardingen to Sofia | 1,087.83 mi (1,750.69 km) |
| Vlaardingen to Sopot | 1,144.03 mi (1,841.14 km) |
| Vlaardingen to Sozopol | 1,269.43 mi (2,042.96 km) |
| Vlaardingen to Sredets | 1,252.63 mi (2,015.92 km) |
| Vlaardingen to Stamboliyski | 1,159.55 mi (1,866.12 km) |
| Vlaardingen to Stara Zagora | 1,188.48 mi (1,912.67 km) |
| Vlaardingen to Svilengrad | 1,240.05 mi (1,995.67 km) |
| Vlaardingen to Svishtov | 1,124.92 mi (1,810.39 km) |
| Vlaardingen to Targovishte | 1,189.31 mi (1,914.01 km) |
| Vlaardingen to Teteven | 1,113.44 mi (1,791.91 km) |
| Vlaardingen to Troyan | 1,132.24 mi (1,822.16 km) |
| Vlaardingen to Tryavna | 1,163.31 mi (1,872.16 km) |
| Vlaardingen to Tutrakan | 1,157.49 mi (1,862.80 km) |
| Vlaardingen to Varna | 1,243.98 mi (2,002.00 km) |
