| Sozopol to Clarkston (Georgia) | 5,637.72 mi (9,073.04 km) |
| Sozopol to Clarksville (Indiana) | 5,471.28 mi (8,805.18 km) |
| Sozopol to Clarksville (Tennessee) | 5,618.71 mi (9,042.44 km) |
| Sozopol to Clawson (Michigan) | 5,167.33 mi (8,316.01 km) |
| Sozopol to Clay (Alabama) | 5,736.81 mi (9,232.51 km) |
| Sozopol to Clayton (California) | 6,565.68 mi (10,566.44 km) |
| Sozopol to Clayton (Missouri) | 5,621.31 mi (9,046.62 km) |
| Sozopol to Clayton (North Carolina) | 5,314.41 mi (8,552.71 km) |
| Sozopol to Clayton (Ohio) | 5,340.86 mi (8,595.28 km) |
| Sozopol to Clearfield (Utah) | 6,143.11 mi (9,886.38 km) |
| Sozopol to Clearlake (California) | 6,514.41 mi (10,483.94 km) |
| Sozopol to Clearwater (Florida) | 5,867.49 mi (9,442.81 km) |
| Sozopol to Cleburne (Texas) | 6,209.41 mi (9,993.08 km) |
| Sozopol to Clemmons (North Carolina) | 5,375.02 mi (8,650.27 km) |
| Sozopol to Clemson (South Carolina) | 5,537.68 mi (8,912.04 km) |
