| Carolina to Smolyan | 5,416.64 mi (8,717.25 km) |
| Carolina to Sofia | 5,330.02 mi (8,577.85 km) |
| Carolina to Sopot | 5,400.91 mi (8,691.92 km) |
| Carolina to Sozopol | 5,550.08 mi (8,931.98 km) |
| Carolina to Sredets | 5,526.82 mi (8,894.55 km) |
| Carolina to Stamboliyski | 5,398.95 mi (8,688.77 km) |
| Carolina to Stara Zagora | 5,449.02 mi (8,769.34 km) |
| Carolina to Svilengrad | 5,488.22 mi (8,832.43 km) |
| Carolina to Svishtov | 5,413.71 mi (8,712.52 km) |
| Carolina to Targovishte | 5,480.01 mi (8,819.23 km) |
| Carolina to Teteven | 5,372.66 mi (8,646.47 km) |
| Carolina to Troyan | 5,395.32 mi (8,682.93 km) |
| Carolina to Tryavna | 5,434.02 mi (8,745.21 km) |
| Carolina to Tutrakan | 5,467.11 mi (8,798.47 km) |
| Carolina to Varna | 5,545.25 mi (8,924.21 km) |
