| Sliven to Carson (California) | 6,695.17 mi (10,774.84 km) |
| Sliven to Carson City (Nevada) | 6,396.70 mi (10,294.49 km) |
| Sliven to Carteret (New Jersey) | 4,850.40 mi (7,805.97 km) |
| Sliven to Cartersville (Georgia) | 5,576.63 mi (8,974.71 km) |
| Sliven to Carthage (Missouri) | 5,779.40 mi (9,301.04 km) |
| Sliven to Cary (Illinois) | 5,303.71 mi (8,535.50 km) |
| Sliven to Cary (North Carolina) | 5,256.85 mi (8,460.08 km) |
| Sliven to Casa de Oro-Mount Helix (California) | 6,729.50 mi (10,830.09 km) |
| Sliven to Casa Grande (Arizona) | 6,579.23 mi (10,588.25 km) |
| Sliven to Casas Adobes (Arizona) | 6,591.38 mi (10,607.80 km) |
| Sliven to Cascades (Virginia) | 5,046.77 mi (8,121.99 km) |
| Sliven to Casper (Wyoming) | 5,838.67 mi (9,396.44 km) |
| Sliven to Casselberry (Florida) | 5,704.11 mi (9,179.88 km) |
| Sliven to Castaic (California) | 6,664.08 mi (10,724.80 km) |
| Sliven to Castle Pines (Colorado) | 5,992.53 mi (9,644.04 km) |
