| Sliven to Chojnow | 767.95 mi (1,235.90 km) |
| Sliven to Chorzow | 632.00 mi (1,017.10 km) |
| Sliven to Choszczno | 881.11 mi (1,418.01 km) |
| Sliven to Chrzanow | 611.01 mi (983.33 km) |
| Sliven to Ciechanow | 751.15 mi (1,208.85 km) |
| Sliven to Ciechocinek | 786.09 mi (1,265.08 km) |
| Sliven to Cieszyn | 610.80 mi (982.98 km) |
| Sliven to Czarna Bialostocka | 746.80 mi (1,201.85 km) |
| Sliven to Czarnkow | 837.27 mi (1,347.46 km) |
| Sliven to Czechowice-Dziedzice | 609.17 mi (980.36 km) |
| Sliven to Czeladz | 630.39 mi (1,014.51 km) |
| Sliven to Czersk Pomorski | 857.22 mi (1,379.56 km) |
| Sliven to Czestochowa | 655.99 mi (1,055.72 km) |
| Sliven to Czluchow | 862.50 mi (1,388.06 km) |
| Sliven to Dabrowa Gornicza | 627.05 mi (1,009.14 km) |
