| Donostia to Coudekerque-Branche | 570.35 mi (917.89 km) |
| Donostia to Coueron | 269.45 mi (433.64 km) |
| Donostia to Coulommiers | 450.43 mi (724.90 km) |
| Donostia to Courbevoic | 435.31 mi (700.56 km) |
| Donostia to Courcouronnes | 423.07 mi (680.86 km) |
| Donostia to Cournon-d'Auvergne | 304.92 mi (490.72 km) |
| Donostia to Courrieres | 545.02 mi (877.12 km) |
| Donostia to Coutras | 150.15 mi (241.65 km) |
| Donostia to Couzeix | 237.16 mi (381.67 km) |
| Donostia to Cran-Gevrier | 435.58 mi (701.00 km) |
| Donostia to Craponne | 370.08 mi (595.59 km) |
| Donostia to Creil | 462.13 mi (743.73 km) |
| Donostia to Crepy-en-Valois | 469.89 mi (756.22 km) |
| Donostia to Crest | 361.10 mi (581.13 km) |
| Donostia to Creteil | 433.73 mi (698.01 km) |
