| Echelon to Clarksdale (Mississippi) | 942.06 mi (1,516.10 km) |
| Echelon to Clarkston (Georgia) | 659.16 mi (1,060.81 km) |
| Echelon to Clarksville (Indiana) | 586.85 mi (944.45 km) |
| Echelon to Clarksville (Tennessee) | 706.79 mi (1,137.47 km) |
| Echelon to Clawson (Michigan) | 462.63 mi (744.54 km) |
| Echelon to Clay (Alabama) | 769.61 mi (1,238.56 km) |
| Echelon to Clayton (California) | 2,498.18 mi (4,020.42 km) |
| Echelon to Clayton (Missouri) | 823.71 mi (1,325.63 km) |
| Echelon to Clayton (North Carolina) | 345.45 mi (555.95 km) |
| Echelon to Clayton (Ohio) | 494.81 mi (796.32 km) |
| Echelon to Clearfield (Utah) | 1,933.36 mi (3,111.44 km) |
| Echelon to Clearlake (California) | 2,513.27 mi (4,044.72 km) |
| Echelon to Clearwater (Florida) | 932.25 mi (1,500.31 km) |
| Echelon to Cleburne (Texas) | 1,349.64 mi (2,172.03 km) |
| Echelon to Clemmons (North Carolina) | 394.57 mi (635.01 km) |
