| Southern Pines to Smolyan | 5,285.18 mi (8,505.67 km) |
| Southern Pines to Sofia | 5,183.47 mi (8,341.99 km) |
| Southern Pines to Sopot | 5,244.67 mi (8,440.48 km) |
| Southern Pines to Sozopol | 5,375.54 mi (8,651.10 km) |
| Southern Pines to Sredets | 5,357.87 mi (8,622.67 km) |
| Southern Pines to Stamboliyski | 5,256.22 mi (8,459.07 km) |
| Southern Pines to Stara Zagora | 5,290.67 mi (8,514.51 km) |
| Southern Pines to Svilengrad | 5,340.55 mi (8,594.78 km) |
| Southern Pines to Svishtov | 5,230.78 mi (8,418.13 km) |
| Southern Pines to Targovishte | 5,295.80 mi (8,522.77 km) |
| Southern Pines to Teteven | 5,214.03 mi (8,391.16 km) |
| Southern Pines to Troyan | 5,234.00 mi (8,423.32 km) |
| Southern Pines to Tryavna | 5,267.00 mi (8,476.42 km) |
| Southern Pines to Tutrakan | 5,264.59 mi (8,472.55 km) |
| Southern Pines to Varna | 5,351.10 mi (8,611.76 km) |
