| Ponca City to Civril | 6,243.09 mi (10,047.28 km) |
| Ponca City to Cizre | 6,695.51 mi (10,775.39 km) |
| Ponca City to Cobanlar | 6,257.78 mi (10,070.92 km) |
| Ponca City to Corlu | 6,026.57 mi (9,698.83 km) |
| Ponca City to Corum | 6,293.80 mi (10,128.89 km) |
| Ponca City to Cukurca | 6,741.27 mi (10,849.02 km) |
| Ponca City to Cukurcayir | 6,413.12 mi (10,320.92 km) |
| Ponca City to Cumayeri | 6,147.13 mi (9,892.85 km) |
| Ponca City to Cumra | 6,386.15 mi (10,277.52 km) |
| Ponca City to Cungus | 6,558.63 mi (10,555.09 km) |
| Ponca City to Dargecit | 6,669.53 mi (10,733.57 km) |
| Ponca City to Davutlar | 6,186.33 mi (9,955.94 km) |
| Ponca City to Demirozu | 6,464.08 mi (10,402.93 km) |
| Ponca City to Demre | 6,360.64 mi (10,236.46 km) |
| Ponca City to Denizciler | 6,551.19 mi (10,543.11 km) |
