| Constanta to Cartagena | 1,602.35 mi (2,578.74 km) |
| Constanta to Cartama | 1,809.62 mi (2,912.31 km) |
| Constanta to Cartaya | 1,916.75 mi (3,084.70 km) |
| Constanta to Caspe | 1,462.10 mi (2,353.03 km) |
| Constanta to Cassa de la Selva | 1,305.12 mi (2,100.38 km) |
| Constanta to Castalla | 1,558.13 mi (2,507.57 km) |
| Constanta to Castellbisbal | 1,357.28 mi (2,184.33 km) |
| Constanta to Castelldefels | 1,361.55 mi (2,191.21 km) |
| Constanta to Castello de Ampurias | 1,288.54 mi (2,073.71 km) |
| Constanta to Castellon de la Plana | 1,490.38 mi (2,398.53 km) |
| Constanta to Castilleja de la Cuesta | 1,859.28 mi (2,992.22 km) |
| Constanta to Catarroja | 1,523.33 mi (2,451.56 km) |
| Constanta to Catral | 1,577.14 mi (2,538.17 km) |
| Constanta to Caudete | 1,570.84 mi (2,528.03 km) |
| Constanta to Cehegin | 1,628.17 mi (2,620.28 km) |
