| Sleaford to Cloverly (Maryland) | 3,610.89 mi (5,811.16 km) |
| Sleaford to Clovis (California) | 5,246.12 mi (8,442.81 km) |
| Sleaford to Clovis (New Mexico) | 4,837.41 mi (7,785.06 km) |
| Sleaford to Clute (Texas) | 4,837.66 mi (7,785.47 km) |
| Sleaford to Coachella (California) | 5,317.63 mi (8,557.90 km) |
| Sleaford to Coalinga (California) | 5,305.23 mi (8,537.94 km) |
| Sleaford to Coamo (Puerto Rico) | 4,232.09 mi (6,810.89 km) |
| Sleaford to Coatesville (Pennsylvania) | 3,523.58 mi (5,670.66 km) |
| Sleaford to Cockeysville (Maryland) | 3,578.88 mi (5,759.65 km) |
| Sleaford to Cocoa (Florida) | 4,288.89 mi (6,902.30 km) |
| Sleaford to Cocoa Beach (Florida) | 4,285.69 mi (6,897.16 km) |
| Sleaford to Coconut Creek (Florida) | 4,373.16 mi (7,037.92 km) |
| Sleaford to Coeur d'Alene (Idaho) | 4,542.83 mi (7,310.98 km) |
| Sleaford to Cohoes (New York) | 3,315.48 mi (5,335.74 km) |
| Sleaford to Cold Springs (Nevada) | 5,088.62 mi (8,189.34 km) |
