| Glenn Dale to Carmona | 3,760.22 mi (6,051.49 km) |
| Glenn Dale to Cartagena | 3,985.12 mi (6,413.43 km) |
| Glenn Dale to Cartama | 3,832.63 mi (6,168.02 km) |
| Glenn Dale to Cartaya | 3,690.12 mi (5,938.67 km) |
| Glenn Dale to Caspe | 3,920.39 mi (6,309.25 km) |
| Glenn Dale to Cassa de la Selva | 4,036.26 mi (6,495.72 km) |
| Glenn Dale to Castalla | 3,969.32 mi (6,388.01 km) |
| Glenn Dale to Castellbisbal | 4,007.42 mi (6,449.32 km) |
| Glenn Dale to Castelldefels | 4,013.13 mi (6,458.50 km) |
| Glenn Dale to Castello de Ampurias | 4,034.28 mi (6,492.55 km) |
| Glenn Dale to Castellon de la Plana | 3,957.66 mi (6,369.23 km) |
| Glenn Dale to Castilleja de la Cuesta | 3,741.98 mi (6,022.14 km) |
| Glenn Dale to Catarroja | 3,957.50 mi (6,368.98 km) |
| Glenn Dale to Catral | 3,976.33 mi (6,399.28 km) |
| Glenn Dale to Caudete | 3,950.68 mi (6,358.00 km) |
