| Sleaford to Ondokuzmayis | 1,860.92 mi (2,994.87 km) |
| Sleaford to Ordu | 1,956.55 mi (3,148.77 km) |
| Sleaford to Ortahisar | 1,939.75 mi (3,121.73 km) |
| Sleaford to Ortakent | 1,723.26 mi (2,773.32 km) |
| Sleaford to Ortaklar | 1,690.99 mi (2,721.39 km) |
| Sleaford to Ortakoy | 1,901.45 mi (3,060.09 km) |
| Sleaford to Ortakoy | 1,880.37 mi (3,026.16 km) |
| Sleaford to Osmaneli | 1,667.83 mi (2,684.11 km) |
| Sleaford to Osmaniye | 2,067.94 mi (3,328.03 km) |
| Sleaford to Ozdere | 1,670.42 mi (2,688.29 km) |
| Sleaford to Palu | 2,141.36 mi (3,446.18 km) |
| Sleaford to Pamukkale | 1,749.86 mi (2,816.13 km) |
| Sleaford to Patnos | 2,237.38 mi (3,600.72 km) |
| Sleaford to Pazar | 1,923.71 mi (3,095.91 km) |
| Sleaford to Pazarcik | 2,090.16 mi (3,363.79 km) |
