| Ponca City to Clacton-on-Sea | 4,593.50 mi (7,392.52 km) |
| Ponca City to Clay Cross | 4,453.40 mi (7,167.05 km) |
| Ponca City to Clayton | 4,419.00 mi (7,111.70 km) |
| Ponca City to Clayton le Moors | 4,398.50 mi (7,078.69 km) |
| Ponca City to Cleckheaton | 4,424.24 mi (7,120.13 km) |
| Ponca City to Cleethorpes | 4,491.19 mi (7,227.88 km) |
| Ponca City to Clevedon | 4,455.04 mi (7,169.69 km) |
| Ponca City to Clifton | 4,470.47 mi (7,194.53 km) |
| Ponca City to Clifton | 4,438.78 mi (7,143.52 km) |
| Ponca City to Cliftonville | 4,617.15 mi (7,430.59 km) |
| Ponca City to Clitheroe | 4,395.21 mi (7,073.41 km) |
| Ponca City to Clydebank | 4,262.42 mi (6,859.70 km) |
| Ponca City to Coalville | 4,469.26 mi (7,192.57 km) |
| Ponca City to Coatbridge | 4,276.66 mi (6,882.62 km) |
| Ponca City to Cobham | 4,551.31 mi (7,324.63 km) |
