| Herndon to Carmignano | 4,365.89 mi (7,026.22 km) |
| Herndon to Carovigno | 4,768.18 mi (7,673.64 km) |
| Herndon to Carpenedolo | 4,288.93 mi (6,902.37 km) |
| Herndon to Carpi | 4,327.55 mi (6,964.51 km) |
| Herndon to Carrara | 4,317.23 mi (6,947.91 km) |
| Herndon to Carugate | 4,235.94 mi (6,817.09 km) |
| Herndon to Casal di Principe | 4,601.47 mi (7,405.35 km) |
| Herndon to Casale Monferrato | 4,211.62 mi (6,777.95 km) |
| Herndon to Casale sul Sile | 4,361.72 mi (7,019.51 km) |
| Herndon to Casalecchio di Reno | 4,354.82 mi (7,008.40 km) |
| Herndon to Casalgrande | 4,327.79 mi (6,964.90 km) |
| Herndon to Casalmaggiore | 4,300.70 mi (6,921.32 km) |
| Herndon to Casalnuovo di Napoli | 4,614.72 mi (7,426.67 km) |
| Herndon to Casalpusterlengo | 4,261.57 mi (6,858.34 km) |
| Herndon to Casaluce | 4,605.03 mi (7,411.08 km) |
