| Langley Park to Butzbach | 4,041.21 mi (6,503.71 km) |
| Langley Park to Buxtehude | 3,995.85 mi (6,430.69 km) |
| Langley Park to Cadolzburg | 4,159.05 mi (6,693.34 km) |
| Langley Park to Calbe | 4,120.17 mi (6,630.77 km) |
| Langley Park to Calw | 4,094.54 mi (6,589.53 km) |
| Langley Park to Castrop-Rauxel | 3,956.56 mi (6,367.47 km) |
| Langley Park to Celle | 4,034.18 mi (6,492.38 km) |
| Langley Park to Cham | 4,237.88 mi (6,820.21 km) |
| Langley Park to Chemnitz | 4,197.11 mi (6,754.59 km) |
| Langley Park to Clausthal-Zellerfeld | 4,067.52 mi (6,546.04 km) |
| Langley Park to Cloppenburg | 3,950.05 mi (6,356.99 km) |
| Langley Park to Coburg | 4,138.04 mi (6,659.54 km) |
| Langley Park to Coesfeld | 3,939.86 mi (6,340.60 km) |
| Langley Park to Cologne | 3,958.81 mi (6,371.10 km) |
| Langley Park to Coswig | 4,213.45 mi (6,780.90 km) |
