| Sleaford to Camas (Washington) | 4,814.19 mi (7,747.68 km) |
| Sleaford to Cambridge (Maryland) | 3,600.03 mi (5,793.69 km) |
| Sleaford to Cambridge (Massachusetts) | 3,230.24 mi (5,198.56 km) |
| Sleaford to Camden (Arkansas) | 4,501.37 mi (7,244.25 km) |
| Sleaford to Camden (New Jersey) | 3,497.49 mi (5,628.67 km) |
| Sleaford to Cameron Park (California) | 5,177.08 mi (8,331.71 km) |
| Sleaford to Camp Pendleton South (California) | 5,383.80 mi (8,664.38 km) |
| Sleaford to Camp Springs (Maryland) | 3,621.74 mi (5,828.62 km) |
| Sleaford to Camp Verde (Arizona) | 5,128.13 mi (8,252.92 km) |
| Sleaford to Campbell (California) | 5,286.62 mi (8,507.99 km) |
| Sleaford to Campbellsville (Kentucky) | 4,022.66 mi (6,473.84 km) |
| Sleaford to Campton Hills (Illinois) | 3,915.63 mi (6,301.59 km) |
| Sleaford to Canby (Oregon) | 4,840.39 mi (7,789.85 km) |
| Sleaford to Candelaria (Puerto Rico) | 4,208.43 mi (6,772.82 km) |
| Sleaford to Candler-McAfee (Georgia) | 4,159.52 mi (6,694.10 km) |
