| Opelousas to Clacton-on-Sea | 4,721.78 mi (7,598.98 km) |
| Opelousas to Clay Cross | 4,587.21 mi (7,382.40 km) |
| Opelousas to Clayton | 4,557.31 mi (7,334.29 km) |
| Opelousas to Clayton le Moors | 4,535.47 mi (7,299.14 km) |
| Opelousas to Cleckheaton | 4,562.26 mi (7,342.25 km) |
| Opelousas to Cleethorpes | 4,631.63 mi (7,453.89 km) |
| Opelousas to Clevedon | 4,570.29 mi (7,355.18 km) |
| Opelousas to Clifton | 4,602.57 mi (7,407.13 km) |
| Opelousas to Clifton | 4,580.36 mi (7,371.37 km) |
| Opelousas to Cliftonville | 4,742.70 mi (7,632.64 km) |
| Opelousas to Clitheroe | 4,533.02 mi (7,295.20 km) |
| Opelousas to Clydebank | 4,414.24 mi (7,104.03 km) |
| Opelousas to Coalville | 4,599.34 mi (7,401.92 km) |
| Opelousas to Coatbridge | 4,428.86 mi (7,127.56 km) |
| Opelousas to Cobham | 4,671.68 mi (7,518.33 km) |
