| Herndon to Chivasso | 4,185.10 mi (6,735.28 km) |
| Herndon to Ciampino | 4,505.44 mi (7,250.80 km) |
| Herndon to Cicciano | 4,620.96 mi (7,436.71 km) |
| Herndon to Cingoli | 4,476.72 mi (7,204.58 km) |
| Herndon to Cinisello Balsamo | 4,230.95 mi (6,809.05 km) |
| Herndon to Cinisi | 4,660.53 mi (7,500.41 km) |
| Herndon to Cirie | 4,171.28 mi (6,713.02 km) |
| Herndon to Ciro Marina | 4,796.01 mi (7,718.43 km) |
| Herndon to Cislago | 4,217.04 mi (6,786.67 km) |
| Herndon to Cisterna di Latina | 4,523.00 mi (7,279.06 km) |
| Herndon to Cisternino | 4,756.75 mi (7,655.25 km) |
| Herndon to Citta di Castello | 4,431.35 mi (7,131.57 km) |
| Herndon to Citta Sant'Angelo | 4,543.17 mi (7,311.52 km) |
| Herndon to Cittadella | 4,336.84 mi (6,979.47 km) |
| Herndon to Cittanova | 4,788.85 mi (7,706.91 km) |
