| Sleaford to Castrovillari | 1,200.58 mi (1,932.15 km) |
| Sleaford to Catania | 1,303.54 mi (2,097.84 km) |
| Sleaford to Catanzaro | 1,264.84 mi (2,035.57 km) |
| Sleaford to Cattolica | 864.41 mi (1,391.13 km) |
| Sleaford to Cava de' Tirreni | 1,105.25 mi (1,778.73 km) |
| Sleaford to Cavallino | 1,236.56 mi (1,990.05 km) |
| Sleaford to Cavarzere | 782.02 mi (1,258.53 km) |
| Sleaford to Cave | 989.72 mi (1,592.79 km) |
| Sleaford to Cavriago | 757.43 mi (1,218.97 km) |
| Sleaford to Cavriglia | 851.23 mi (1,369.93 km) |
| Sleaford to Cazzago San Martino | 694.14 mi (1,117.10 km) |
| Sleaford to Ceccano | 1,015.61 mi (1,634.46 km) |
| Sleaford to Cecina | 835.32 mi (1,344.31 km) |
| Sleaford to Cefalu | 1,242.62 mi (1,999.80 km) |
| Sleaford to Ceglie Messapico | 1,195.61 mi (1,924.15 km) |
