| Sleaford to Rockville (Maryland) | 3,618.14 mi (5,822.83 km) |
| Sleaford to Rockville Centre (New York) | 3,406.05 mi (5,481.50 km) |
| Sleaford to Rockwall (Texas) | 4,671.24 mi (7,517.63 km) |
| Sleaford to Rocky Mount (North Carolina) | 3,791.40 mi (6,101.66 km) |
| Sleaford to Rocky Point (New York) | 3,365.93 mi (5,416.94 km) |
| Sleaford to Rocky River (Ohio) | 3,690.77 mi (5,939.73 km) |
| Sleaford to Roessleville (New York) | 3,322.30 mi (5,346.72 km) |
| Sleaford to Rogers (Arkansas) | 4,408.91 mi (7,095.45 km) |
| Sleaford to Rogers (Minnesota) | 3,945.56 mi (6,349.77 km) |
| Sleaford to Rohnert Park (California) | 5,245.21 mi (8,441.34 km) |
| Sleaford to Rolla (Missouri) | 4,236.85 mi (6,818.56 km) |
| Sleaford to Rolling Meadows (Illinois) | 3,895.16 mi (6,268.65 km) |
| Sleaford to Roma (Texas) | 5,116.55 mi (8,234.30 km) |
| Sleaford to Rome (Georgia) | 4,168.64 mi (6,708.78 km) |
| Sleaford to Rome (New York) | 3,365.54 mi (5,416.31 km) |
