| Echelon to Clemson (South Carolina) | 558.23 mi (898.39 km) |
| Echelon to Clermont (Florida) | 870.52 mi (1,400.96 km) |
| Echelon to Cleveland (Mississippi) | 965.38 mi (1,553.62 km) |
| Echelon to Cleveland (Ohio) | 367.86 mi (592.02 km) |
| Echelon to Cleveland (Tennessee) | 629.39 mi (1,012.90 km) |
| Echelon to Cleveland Heights (Ohio) | 362.71 mi (583.72 km) |
| Echelon to Cliffside Park (New Jersey) | 85.71 mi (137.93 km) |
| Echelon to Clifton (Colorado) | 1,775.43 mi (2,857.28 km) |
| Echelon to Clifton (New Jersey) | 82.85 mi (133.33 km) |
| Echelon to Clinton (Iowa) | 807.55 mi (1,299.63 km) |
| Echelon to Clinton (Maryland) | 127.25 mi (204.79 km) |
| Echelon to Clinton (Mississippi) | 998.84 mi (1,607.47 km) |
| Echelon to Clinton (Utah) | 1,935.07 mi (3,114.20 km) |
| Echelon to Clive (Iowa) | 989.97 mi (1,593.21 km) |
| Echelon to Cloquet (Minnesota) | 996.87 mi (1,604.31 km) |
