| Illescas to Cognac | 424.20 mi (682.69 km) |
| Illescas to Cogolin | 576.46 mi (927.73 km) |
| Illescas to Colmar | 780.20 mi (1,255.61 km) |
| Illescas to Colombes | 677.80 mi (1,090.81 km) |
| Illescas to Colomiers | 359.25 mi (578.15 km) |
| Illescas to Combs-la-Ville | 669.41 mi (1,077.32 km) |
| Illescas to Comines | 805.94 mi (1,297.03 km) |
| Illescas to Compiegne | 719.98 mi (1,158.70 km) |
| Illescas to Concarneau | 536.08 mi (862.74 km) |
| Illescas to Conde-sur-l'Escaut | 798.99 mi (1,285.85 km) |
| Illescas to Conflans-Sainte-Honorine | 679.14 mi (1,092.96 km) |
| Illescas to Corbas | 584.74 mi (941.04 km) |
| Illescas to Corbeil-Essonnes | 664.27 mi (1,069.04 km) |
| Illescas to Cormeilles-en-Parisis | 679.77 mi (1,093.99 km) |
| Illescas to Cosne sur Loire | 605.84 mi (975.00 km) |
