| Sleaford to Castle Rock (Colorado) | 4,629.74 mi (7,450.85 km) |
| Sleaford to Castro Valley (California) | 5,264.61 mi (8,472.57 km) |
| Sleaford to Catalina Foothills (Arizona) | 5,222.71 mi (8,405.14 km) |
| Sleaford to Cataño (Puerto Rico) | 4,203.62 mi (6,765.07 km) |
| Sleaford to Cathedral City (California) | 5,319.52 mi (8,560.94 km) |
| Sleaford to Catonsville (Maryland) | 3,593.35 mi (5,782.93 km) |
| Sleaford to Cave Spring (Virginia) | 3,818.97 mi (6,146.04 km) |
| Sleaford to Cayce (South Carolina) | 4,019.94 mi (6,469.47 km) |
| Sleaford to Cayey (Puerto Rico) | 4,221.75 mi (6,794.25 km) |
| Sleaford to Cedar City (Utah) | 4,993.52 mi (8,036.29 km) |
| Sleaford to Cedar Falls (Iowa) | 4,035.33 mi (6,494.23 km) |
| Sleaford to Cedar Hill (Texas) | 4,708.53 mi (7,577.65 km) |
| Sleaford to Cedar Lake (Indiana) | 3,907.10 mi (6,287.86 km) |
| Sleaford to Cedar Mill (Oregon) | 4,827.68 mi (7,769.39 km) |
| Sleaford to Cedar Park (Texas) | 4,850.94 mi (7,806.83 km) |
