| Sleaford to Commerce City (Colorado) | 4,603.33 mi (7,408.34 km) |
| Sleaford to Compton (California) | 5,371.86 mi (8,645.18 km) |
| Sleaford to Comstock Park (Michigan) | 3,762.21 mi (6,054.69 km) |
| Sleaford to Concord (California) | 5,247.39 mi (8,444.87 km) |
| Sleaford to Concord (Missouri) | 4,156.01 mi (6,688.45 km) |
| Sleaford to Concord (New Hampshire) | 3,210.99 mi (5,167.58 km) |
| Sleaford to Concord (North Carolina) | 3,932.63 mi (6,328.95 km) |
| Sleaford to Conneaut (Ohio) | 3,620.35 mi (5,826.40 km) |
| Sleaford to Connersville (Indiana) | 3,902.32 mi (6,280.18 km) |
| Sleaford to Conroe (Texas) | 4,772.00 mi (7,679.79 km) |
| Sleaford to Converse (Texas) | 4,923.04 mi (7,922.87 km) |
| Sleaford to Conway (Arkansas) | 4,409.32 mi (7,096.12 km) |
| Sleaford to Conway (Florida) | 4,306.02 mi (6,929.87 km) |
| Sleaford to Conway (South Carolina) | 3,944.77 mi (6,348.49 km) |
| Sleaford to Conyers (Georgia) | 4,151.69 mi (6,681.51 km) |
