| Sleaford to Cookeville (Tennessee) | 4,087.75 mi (6,578.59 km) |
| Sleaford to Coolidge (Arizona) | 5,208.89 mi (8,382.90 km) |
| Sleaford to Coon Rapids (Minnesota) | 3,936.71 mi (6,335.53 km) |
| Sleaford to Cooper City (Florida) | 4,389.46 mi (7,064.15 km) |
| Sleaford to Coos Bay (Oregon) | 4,991.39 mi (8,032.87 km) |
| Sleaford to Copiague (New York) | 3,395.95 mi (5,465.26 km) |
| Sleaford to Coppell (Texas) | 4,689.48 mi (7,546.99 km) |
| Sleaford to Copperas Cove (Texas) | 4,822.01 mi (7,760.27 km) |
| Sleaford to Coral Gables (Florida) | 4,406.61 mi (7,091.76 km) |
| Sleaford to Coral Springs (Florida) | 4,376.76 mi (7,043.71 km) |
| Sleaford to Coral Terrace (Florida) | 4,405.77 mi (7,090.41 km) |
| Sleaford to Coralville (Iowa) | 4,044.48 mi (6,508.97 km) |
| Sleaford to Coram (New York) | 3,371.13 mi (5,425.31 km) |
| Sleaford to Corcoran (California) | 5,285.68 mi (8,506.48 km) |
| Sleaford to Cordele (Georgia) | 4,228.51 mi (6,805.13 km) |
