| Sofia to Coldwater (Michigan) | 5,089.09 mi (8,190.10 km) |
| Sofia to Colesville (Maryland) | 4,907.45 mi (7,897.78 km) |
| Sofia to College (Alaska) | 4,989.04 mi (8,029.08 km) |
| Sofia to College Park (Georgia) | 5,467.03 mi (8,798.33 km) |
| Sofia to College Park (Maryland) | 4,908.12 mi (7,898.85 km) |
| Sofia to College Station (Texas) | 6,090.47 mi (9,801.66 km) |
| Sofia to Collegedale (Tennessee) | 5,422.09 mi (8,726.01 km) |
| Sofia to Colleyville (Texas) | 5,999.51 mi (9,655.27 km) |
| Sofia to Collierville (Tennessee) | 5,606.04 mi (9,022.06 km) |
| Sofia to Collinsville (Illinois) | 5,435.29 mi (8,747.25 km) |
| Sofia to Colonia (New Jersey) | 4,730.67 mi (7,613.28 km) |
| Sofia to Colonial Heights (Virginia) | 5,004.87 mi (8,054.55 km) |
| Sofia to Colonial Park (Pennsylvania) | 4,845.18 mi (7,797.57 km) |
| Sofia to Colorado Springs (Colorado) | 5,930.89 mi (9,544.84 km) |
| Sofia to Colton (California) | 6,579.66 mi (10,588.94 km) |
