| Clemmons to Smolyan | 5,287.53 mi (8,509.45 km) |
| Clemmons to Sofia | 5,185.36 mi (8,345.03 km) |
| Clemmons to Sopot | 5,245.75 mi (8,442.21 km) |
| Clemmons to Sozopol | 5,375.02 mi (8,650.27 km) |
| Clemmons to Sredets | 5,357.75 mi (8,622.47 km) |
| Clemmons to Stamboliyski | 5,258.03 mi (8,461.98 km) |
| Clemmons to Stara Zagora | 5,291.43 mi (8,515.74 km) |
| Clemmons to Svilengrad | 5,341.73 mi (8,596.69 km) |
| Clemmons to Svishtov | 5,230.36 mi (8,417.45 km) |
| Clemmons to Targovishte | 5,295.04 mi (8,521.54 km) |
| Clemmons to Teteven | 5,215.09 mi (8,392.87 km) |
| Clemmons to Troyan | 5,234.83 mi (8,424.64 km) |
| Clemmons to Tryavna | 5,267.36 mi (8,476.99 km) |
| Clemmons to Tutrakan | 5,262.89 mi (8,469.80 km) |
| Clemmons to Varna | 5,349.53 mi (8,609.24 km) |
