| Philadelphia to Coudekerque-Branche | 3,651.79 mi (5,876.98 km) |
| Philadelphia to Coueron | 3,569.16 mi (5,744.01 km) |
| Philadelphia to Coulommiers | 3,735.73 mi (6,012.07 km) |
| Philadelphia to Courbevoic | 3,698.58 mi (5,952.29 km) |
| Philadelphia to Courcouronnes | 3,713.06 mi (5,975.59 km) |
| Philadelphia to Cournon-d'Auvergne | 3,824.33 mi (6,154.66 km) |
| Philadelphia to Courrieres | 3,688.31 mi (5,935.77 km) |
| Philadelphia to Coutras | 3,695.86 mi (5,947.92 km) |
| Philadelphia to Couzeix | 3,734.23 mi (6,009.66 km) |
| Philadelphia to Cran-Gevrier | 3,946.52 mi (6,351.32 km) |
| Philadelphia to Craponne | 3,891.13 mi (6,262.16 km) |
| Philadelphia to Creil | 3,699.10 mi (5,953.13 km) |
| Philadelphia to Crepy-en-Valois | 3,716.66 mi (5,981.38 km) |
| Philadelphia to Crest | 3,934.41 mi (6,331.82 km) |
| Philadelphia to Creteil | 3,710.17 mi (5,970.94 km) |
