| Sofia to Cookeville (Tennessee) | 5,387.37 mi (8,670.13 km) |
| Sofia to Coolidge (Arizona) | 6,481.13 mi (10,430.37 km) |
| Sofia to Coon Rapids (Minnesota) | 5,223.37 mi (8,406.21 km) |
| Sofia to Cooper City (Florida) | 5,653.00 mi (9,097.62 km) |
| Sofia to Coos Bay (Oregon) | 6,159.19 mi (9,912.26 km) |
| Sofia to Copiague (New York) | 4,689.33 mi (7,546.75 km) |
| Sofia to Coppell (Texas) | 5,989.80 mi (9,639.66 km) |
| Sofia to Copperas Cove (Texas) | 6,122.77 mi (9,853.65 km) |
| Sofia to Coral Gables (Florida) | 5,668.73 mi (9,122.94 km) |
| Sofia to Coral Springs (Florida) | 5,641.08 mi (9,078.44 km) |
| Sofia to Coral Terrace (Florida) | 5,668.18 mi (9,122.06 km) |
| Sofia to Coralville (Iowa) | 5,340.86 mi (8,595.28 km) |
| Sofia to Coram (New York) | 4,664.45 mi (7,506.71 km) |
| Sofia to Corcoran (California) | 6,512.54 mi (10,480.91 km) |
| Sofia to Cordele (Georgia) | 5,519.65 mi (8,883.02 km) |
