| Glenn Dale to Cognac | 3,782.67 mi (6,087.61 km) |
| Glenn Dale to Cogolin | 4,160.28 mi (6,695.32 km) |
| Glenn Dale to Colmar | 4,049.14 mi (6,516.46 km) |
| Glenn Dale to Colombes | 3,811.62 mi (6,134.21 km) |
| Glenn Dale to Colomiers | 3,914.84 mi (6,300.32 km) |
| Glenn Dale to Combs-la-Ville | 3,831.13 mi (6,165.60 km) |
| Glenn Dale to Comines | 3,797.04 mi (6,110.74 km) |
| Glenn Dale to Compiegne | 3,823.10 mi (6,152.68 km) |
| Glenn Dale to Concarneau | 3,570.86 mi (5,746.74 km) |
| Glenn Dale to Conde-sur-l'Escaut | 3,828.65 mi (6,161.61 km) |
| Glenn Dale to Conflans-Sainte-Honorine | 3,803.21 mi (6,120.67 km) |
| Glenn Dale to Corbas | 4,014.72 mi (6,461.06 km) |
| Glenn Dale to Corbeil-Essonnes | 3,829.27 mi (6,162.62 km) |
| Glenn Dale to Cormeilles-en-Parisis | 3,808.20 mi (6,128.70 km) |
| Glenn Dale to Cosne sur Loire | 3,879.93 mi (6,244.15 km) |
