| Sleaford to Cermik | 2,146.80 mi (3,454.93 km) |
| Sleaford to Cesme | 1,624.45 mi (2,614.31 km) |
| Sleaford to Ceyhan | 2,052.81 mi (3,303.67 km) |
| Sleaford to Ceylanpinar | 2,231.09 mi (3,590.60 km) |
| Sleaford to Cicekdagi | 1,876.13 mi (3,019.34 km) |
| Sleaford to Cide | 1,718.85 mi (2,766.22 km) |
| Sleaford to Cifteler | 1,752.90 mi (2,821.02 km) |
| Sleaford to Ciftlik | 1,945.90 mi (3,131.62 km) |
| Sleaford to Ciftlikkoy | 1,626.38 mi (2,617.41 km) |
| Sleaford to Cihanbeyli | 1,861.23 mi (2,995.37 km) |
| Sleaford to Cildir | 2,167.05 mi (3,487.53 km) |
| Sleaford to Cilimli | 1,683.67 mi (2,709.61 km) |
| Sleaford to Cinar | 2,204.98 mi (3,548.58 km) |
| Sleaford to Cinarcik | 1,619.25 mi (2,605.94 km) |
| Sleaford to Cine | 1,725.61 mi (2,777.09 km) |
