| Kardzhali to Southern Pines (North Carolina) | 5,310.50 mi (8,546.43 km) |
| Kardzhali to Southfield (Michigan) | 5,124.79 mi (8,247.55 km) |
| Kardzhali to Southgate (Michigan) | 5,135.44 mi (8,264.70 km) |
| Kardzhali to Southlake (Texas) | 6,121.51 mi (9,851.61 km) |
| Kardzhali to Spanaway (Washington) | 5,994.88 mi (9,647.82 km) |
| Kardzhali to Spanish Fork (Utah) | 6,178.18 mi (9,942.82 km) |
| Kardzhali to Spanish Lake (Missouri) | 5,562.61 mi (8,952.16 km) |
| Kardzhali to Spanish Springs (Nevada) | 6,405.78 mi (10,309.10 km) |
| Kardzhali to Sparks (Nevada) | 6,412.04 mi (10,319.17 km) |
| Kardzhali to Spartanburg (South Carolina) | 5,426.94 mi (8,733.81 km) |
| Kardzhali to Spearfish (South Dakota) | 5,706.42 mi (9,183.60 km) |
| Kardzhali to Speedway (Indiana) | 5,365.19 mi (8,634.45 km) |
| Kardzhali to Spencer (Iowa) | 5,511.48 mi (8,869.86 km) |
| Kardzhali to Spokane (Washington) | 5,859.76 mi (9,430.37 km) |
| Kardzhali to Spokane Valley (Washington) | 5,855.84 mi (9,424.06 km) |
