| Sliven to Cookeville (Tennessee) | 5,505.80 mi (8,860.73 km) |
| Sliven to Coolidge (Arizona) | 6,570.67 mi (10,574.48 km) |
| Sliven to Coon Rapids (Minnesota) | 5,321.83 mi (8,564.66 km) |
| Sliven to Cooper City (Florida) | 5,786.89 mi (9,313.10 km) |
| Sliven to Coos Bay (Oregon) | 6,217.24 mi (10,005.69 km) |
| Sliven to Copiague (New York) | 4,812.84 mi (7,745.52 km) |
| Sliven to Coppell (Texas) | 6,099.44 mi (9,816.10 km) |
| Sliven to Copperas Cove (Texas) | 6,233.39 mi (10,031.67 km) |
| Sliven to Coral Gables (Florida) | 5,802.95 mi (9,338.95 km) |
| Sliven to Coral Springs (Florida) | 5,774.79 mi (9,293.62 km) |
| Sliven to Coral Terrace (Florida) | 5,802.34 mi (9,337.96 km) |
| Sliven to Coralville (Iowa) | 5,445.93 mi (8,764.37 km) |
| Sliven to Coram (New York) | 4,787.99 mi (7,705.52 km) |
| Sliven to Corcoran (California) | 6,585.56 mi (10,598.44 km) |
| Sliven to Cordele (Georgia) | 5,644.56 mi (9,084.04 km) |
