| Onex to Coudekerque-Branche | 374.89 mi (603.32 km) |
| Onex to Coueron | 377.32 mi (607.24 km) |
| Onex to Coulommiers | 229.97 mi (370.10 km) |
| Onex to Courbevoic | 259.49 mi (417.62 km) |
| Onex to Courcouronnes | 240.57 mi (387.16 km) |
| Onex to Cournon-d'Auvergne | 142.70 mi (229.65 km) |
| Onex to Courrieres | 328.89 mi (529.30 km) |
| Onex to Coutras | 311.14 mi (500.73 km) |
| Onex to Couzeix | 234.13 mi (376.80 km) |
| Onex to Cran-Gevrier | 19.33 mi (31.10 km) |
| Onex to Craponne | 72.71 mi (117.02 km) |
| Onex to Creil | 270.86 mi (435.91 km) |
| Onex to Crepy-en-Valois | 258.30 mi (415.70 km) |
| Onex to Crest | 113.29 mi (182.32 km) |
| Onex to Creteil | 247.54 mi (398.38 km) |
