| Kardzhali to Sangeorz-Bai | 396.65 mi (638.35 km) |
| Kardzhali to Sannicolau Mare | 385.98 mi (621.17 km) |
| Kardzhali to Santana | 377.23 mi (607.09 km) |
| Kardzhali to Satu Mare | 441.25 mi (710.12 km) |
| Kardzhali to Scobinti | 403.56 mi (649.46 km) |
| Kardzhali to Scornicesti | 205.91 mi (331.38 km) |
| Kardzhali to Sebes | 310.95 mi (500.43 km) |
| Kardzhali to Seini | 433.50 mi (697.64 km) |
| Kardzhali to Sfantu-Gheorghe | 291.89 mi (469.75 km) |
| Kardzhali to Sibiu | 292.59 mi (470.87 km) |
| Kardzhali to Sighetu Marmatiei | 439.77 mi (707.74 km) |
| Kardzhali to Sighisoara | 316.84 mi (509.90 km) |
| Kardzhali to Simeria | 313.09 mi (503.86 km) |
| Kardzhali to Sinaia | 255.81 mi (411.69 km) |
| Kardzhali to Slatina | 198.61 mi (319.64 km) |
