| Herndon to Cognac | 3,809.18 mi (6,130.28 km) |
| Herndon to Cogolin | 4,186.85 mi (6,738.08 km) |
| Herndon to Colmar | 4,074.05 mi (6,556.56 km) |
| Herndon to Colombes | 3,836.76 mi (6,174.67 km) |
| Herndon to Colomiers | 3,941.84 mi (6,343.78 km) |
| Herndon to Combs-la-Ville | 3,856.33 mi (6,206.17 km) |
| Herndon to Comines | 3,821.41 mi (6,149.97 km) |
| Herndon to Compiegne | 3,848.00 mi (6,192.76 km) |
| Herndon to Concarneau | 3,596.94 mi (5,788.71 km) |
| Herndon to Conde-sur-l'Escaut | 3,853.08 mi (6,200.94 km) |
| Herndon to Conflans-Sainte-Honorine | 3,828.34 mi (6,161.11 km) |
| Herndon to Corbas | 4,040.71 mi (6,502.90 km) |
| Herndon to Corbeil-Essonnes | 3,854.50 mi (6,203.22 km) |
| Herndon to Cormeilles-en-Parisis | 3,833.33 mi (6,169.14 km) |
| Herndon to Cosne sur Loire | 3,905.55 mi (6,285.38 km) |
