| Herndon to Butzbach | 4,058.35 mi (6,531.28 km) |
| Herndon to Buxtehude | 4,012.11 mi (6,456.86 km) |
| Herndon to Cadolzburg | 4,176.26 mi (6,721.04 km) |
| Herndon to Calbe | 4,136.69 mi (6,657.36 km) |
| Herndon to Calw | 4,112.10 mi (6,617.78 km) |
| Herndon to Castrop-Rauxel | 3,973.51 mi (6,394.75 km) |
| Herndon to Celle | 4,050.64 mi (6,518.88 km) |
| Herndon to Cham | 4,255.01 mi (6,847.77 km) |
| Herndon to Chemnitz | 4,213.82 mi (6,781.48 km) |
| Herndon to Clausthal-Zellerfeld | 4,084.18 mi (6,572.85 km) |
| Herndon to Cloppenburg | 3,966.60 mi (6,383.62 km) |
| Herndon to Coburg | 4,155.05 mi (6,686.90 km) |
| Herndon to Coesfeld | 3,956.72 mi (6,367.72 km) |
| Herndon to Cologne | 3,975.95 mi (6,398.67 km) |
| Herndon to Coswig | 4,230.03 mi (6,807.58 km) |
