| Sleaford to Odessa (Texas) | 4,945.17 mi (7,958.48 km) |
| Sleaford to Ogden (Utah) | 4,760.47 mi (7,661.24 km) |
| Sleaford to Oildale (California) | 5,307.59 mi (8,541.74 km) |
| Sleaford to Ojus (Florida) | 4,388.96 mi (7,063.35 km) |
| Sleaford to Okemos (Michigan) | 3,730.67 mi (6,003.94 km) |
| Sleaford to Oklahoma City (Oklahoma) | 4,577.27 mi (7,366.40 km) |
| Sleaford to Okmulgee (Oklahoma) | 4,514.10 mi (7,264.75 km) |
| Sleaford to Olathe (Kansas) | 4,302.44 mi (6,924.11 km) |
| Sleaford to Old Jamestown (Missouri) | 4,137.00 mi (6,657.86 km) |
| Sleaford to Oldsmar (Florida) | 4,383.41 mi (7,054.41 km) |
| Sleaford to Olean (New York) | 3,530.79 mi (5,682.25 km) |
| Sleaford to Olive Branch (Mississippi) | 4,315.06 mi (6,944.41 km) |
| Sleaford to Olivehurst (California) | 5,169.80 mi (8,319.98 km) |
| Sleaford to Olney (Maryland) | 3,611.88 mi (5,812.76 km) |
| Sleaford to Olympia (Washington) | 4,742.77 mi (7,632.75 km) |
