| Langley Park to Cognac | 3,790.32 mi (6,099.92 km) |
| Langley Park to Cogolin | 4,167.95 mi (6,707.66 km) |
| Langley Park to Colmar | 4,056.25 mi (6,527.90 km) |
| Langley Park to Colombes | 3,818.80 mi (6,145.77 km) |
| Langley Park to Colomiers | 3,922.65 mi (6,312.90 km) |
| Langley Park to Combs-la-Ville | 3,838.33 mi (6,177.20 km) |
| Langley Park to Comines | 3,803.97 mi (6,121.90 km) |
| Langley Park to Compiegne | 3,830.20 mi (6,164.12 km) |
| Langley Park to Concarneau | 3,578.36 mi (5,758.81 km) |
| Langley Park to Conde-sur-l'Escaut | 3,835.60 mi (6,172.80 km) |
| Langley Park to Conflans-Sainte-Honorine | 3,810.39 mi (6,132.23 km) |
| Langley Park to Corbas | 4,022.19 mi (6,473.09 km) |
| Langley Park to Corbeil-Essonnes | 3,836.49 mi (6,174.23 km) |
| Langley Park to Cormeilles-en-Parisis | 3,815.38 mi (6,140.26 km) |
| Langley Park to Cosne sur Loire | 3,887.28 mi (6,255.97 km) |
