| Sinop to Cehegin | 1,957.42 mi (3,150.16 km) |
| Sinop to Cervello | 1,701.75 mi (2,738.71 km) |
| Sinop to Cervera | 1,732.48 mi (2,788.16 km) |
| Sinop to Ceuti | 1,930.78 mi (3,107.29 km) |
| Sinop to Cheste | 1,870.13 mi (3,009.69 km) |
| Sinop to Chiclana de la Frontera | 2,222.41 mi (3,576.62 km) |
| Sinop to Chipiona | 2,228.46 mi (3,586.37 km) |
| Sinop to Chiva | 1,872.10 mi (3,012.86 km) |
| Sinop to Churriana de la Vega | 2,075.19 mi (3,339.70 km) |
| Sinop to Ciempozuelos | 2,005.61 mi (3,227.72 km) |
| Sinop to Cieza | 1,934.57 mi (3,113.39 km) |
| Sinop to Cisterniga | 2,032.44 mi (3,270.89 km) |
| Sinop to Ciudad de Melilla | 2,089.64 mi (3,362.96 km) |
| Sinop to Ciudad Real | 2,045.30 mi (3,291.59 km) |
| Sinop to Ciudad-Rodrigo | 2,144.36 mi (3,451.01 km) |
