| Upminster to Coudekerque-Branche | 99.48 mi (160.10 km) |
| Upminster to Coueron | 312.71 mi (503.25 km) |
| Upminster to Coulommiers | 227.00 mi (365.31 km) |
| Upminster to Courbevoic | 203.83 mi (328.03 km) |
| Upminster to Courcouronnes | 224.38 mi (361.10 km) |
| Upminster to Cournon-d'Auvergne | 423.50 mi (681.55 km) |
| Upminster to Courrieres | 139.59 mi (224.65 km) |
| Upminster to Coutras | 450.47 mi (724.97 km) |
| Upminster to Couzeix | 394.99 mi (635.67 km) |
| Upminster to Cran-Gevrier | 472.59 mi (760.55 km) |
| Upminster to Craponne | 450.17 mi (724.48 km) |
| Upminster to Creil | 186.68 mi (300.44 km) |
| Upminster to Crepy-en-Valois | 197.98 mi (318.62 km) |
| Upminster to Crest | 520.22 mi (837.21 km) |
| Upminster to Creteil | 214.60 mi (345.37 km) |
