| Echelon to Clacton-on-Sea | 3,584.97 mi (5,769.46 km) |
| Echelon to Clay Cross | 3,453.98 mi (5,558.65 km) |
| Echelon to Clayton | 3,426.64 mi (5,514.65 km) |
| Echelon to Clayton le Moors | 3,404.27 mi (5,478.64 km) |
| Echelon to Cleckheaton | 3,431.40 mi (5,522.31 km) |
| Echelon to Cleethorpes | 3,501.52 mi (5,635.16 km) |
| Echelon to Clevedon | 3,428.73 mi (5,518.01 km) |
| Echelon to Clifton | 3,468.38 mi (5,581.82 km) |
| Echelon to Clifton | 3,451.28 mi (5,554.29 km) |
| Echelon to Cliftonville | 3,604.52 mi (5,800.92 km) |
| Echelon to Clitheroe | 3,402.28 mi (5,475.44 km) |
| Echelon to Clydebank | 3,292.66 mi (5,299.02 km) |
| Echelon to Coalville | 3,464.18 mi (5,575.06 km) |
| Echelon to Coatbridge | 3,307.37 mi (5,322.70 km) |
| Echelon to Cobham | 3,531.66 mi (5,683.65 km) |
