| Longmont to Cavaillon | 5,189.47 mi (8,351.65 km) |
| Longmont to Cebazat | 5,027.21 mi (8,090.52 km) |
| Longmont to Cenon | 4,934.25 mi (7,940.90 km) |
| Longmont to Cergy | 4,848.20 mi (7,802.42 km) |
| Longmont to Cernay | 5,081.12 mi (8,177.27 km) |
| Longmont to Cesson | 4,887.73 mi (7,866.04 km) |
| Longmont to Cesson-Sevigne | 4,755.39 mi (7,653.05 km) |
| Longmont to Cestas | 4,933.38 mi (7,939.51 km) |
| Longmont to Chalette-sur-Loing | 4,916.93 mi (7,913.04 km) |
| Longmont to Challans | 4,798.51 mi (7,722.46 km) |
| Longmont to Chalon-sur-Saone | 5,047.46 mi (8,123.10 km) |
| Longmont to Chalons-en-Champagne | 4,931.84 mi (7,937.04 km) |
| Longmont to Chamalieres | 5,028.60 mi (8,092.75 km) |
| Longmont to Chambery | 5,140.97 mi (8,273.59 km) |
| Longmont to Chambly | 4,849.00 mi (7,803.71 km) |
