| Herndon to Cehegin | 3,958.80 mi (6,371.07 km) |
| Herndon to Cervello | 4,036.35 mi (6,495.88 km) |
| Herndon to Cervera | 3,996.21 mi (6,431.28 km) |
| Herndon to Ceuti | 3,984.83 mi (6,412.96 km) |
| Herndon to Cheste | 3,970.08 mi (6,389.22 km) |
| Herndon to Chiclana de la Frontera | 3,795.17 mi (6,107.74 km) |
| Herndon to Chipiona | 3,771.51 mi (6,069.65 km) |
| Herndon to Chiva | 3,968.64 mi (6,386.91 km) |
| Herndon to Churriana de la Vega | 3,897.07 mi (6,271.72 km) |
| Herndon to Ciempozuelos | 3,809.28 mi (6,130.44 km) |
| Herndon to Cieza | 3,972.74 mi (6,393.50 km) |
| Herndon to Cisterniga | 3,717.72 mi (5,983.10 km) |
| Herndon to Ciudad de Melilla | 3,990.58 mi (6,422.21 km) |
| Herndon to Ciudad Real | 3,828.97 mi (6,162.13 km) |
| Herndon to Ciudad-Rodrigo | 3,656.39 mi (5,884.39 km) |
