| Guyancourt to Cartagena | 786.90 mi (1,266.39 km) |
| Guyancourt to Cartama | 899.16 mi (1,447.06 km) |
| Guyancourt to Cartaya | 918.83 mi (1,478.71 km) |
| Guyancourt to Caspe | 530.85 mi (854.32 km) |
| Guyancourt to Cassa de la Selva | 477.09 mi (767.80 km) |
| Guyancourt to Castalla | 716.12 mi (1,152.49 km) |
| Guyancourt to Castellbisbal | 504.03 mi (811.17 km) |
| Guyancourt to Castelldefels | 517.63 mi (833.04 km) |
| Guyancourt to Castello de Ampurias | 452.61 mi (728.40 km) |
| Guyancourt to Castellon de la Plana | 616.00 mi (991.35 km) |
| Guyancourt to Castilleja de la Cuesta | 886.04 mi (1,425.95 km) |
| Guyancourt to Catarroja | 658.79 mi (1,060.22 km) |
| Guyancourt to Catral | 747.15 mi (1,202.42 km) |
| Guyancourt to Caudete | 712.00 mi (1,145.85 km) |
| Guyancourt to Cehegin | 762.73 mi (1,227.50 km) |
