| Sliven to Catania | 692.96 mi (1,115.22 km) |
| Sliven to Catanzaro | 571.83 mi (920.27 km) |
| Sliven to Cattolica | 688.51 mi (1,108.05 km) |
| Sliven to Cava de' Tirreni | 615.11 mi (989.93 km) |
| Sliven to Cavallino | 451.29 mi (726.28 km) |
| Sliven to Cavarzere | 728.32 mi (1,172.11 km) |
| Sliven to Cave | 687.21 mi (1,105.96 km) |
| Sliven to Cavriago | 800.23 mi (1,287.84 km) |
| Sliven to Cavriglia | 750.38 mi (1,207.62 km) |
| Sliven to Cazzago San Martino | 831.51 mi (1,338.19 km) |
| Sliven to Ceccano | 669.97 mi (1,078.21 km) |
| Sliven to Cecina | 799.24 mi (1,286.25 km) |
| Sliven to Cefalu | 722.72 mi (1,163.10 km) |
| Sliven to Ceglie Messapico | 476.81 mi (767.35 km) |
| Sliven to Celano | 652.69 mi (1,050.40 km) |
