| Ponca City to Cavdir | 6,302.25 mi (10,142.49 km) |
| Ponca City to Cay | 6,271.94 mi (10,093.72 km) |
| Ponca City to Caybasi | 6,332.10 mi (10,190.53 km) |
| Ponca City to Caycuma | 6,154.03 mi (9,903.95 km) |
| Ponca City to Cayeli | 6,434.18 mi (10,354.81 km) |
| Ponca City to Cayiralan | 6,384.42 mi (10,274.73 km) |
| Ponca City to Cayirhan | 6,212.90 mi (9,998.69 km) |
| Ponca City to Cayirli | 6,488.97 mi (10,442.98 km) |
| Ponca City to Cayirova | 6,097.04 mi (9,812.25 km) |
| Ponca City to Caykara | 6,440.34 mi (10,364.72 km) |
| Ponca City to Cekerek | 6,336.88 mi (10,198.22 km) |
| Ponca City to Cekme | 6,079.34 mi (9,783.76 km) |
| Ponca City to Celtik | 6,274.50 mi (10,097.84 km) |
| Ponca City to Cerkes | 6,213.53 mi (9,999.71 km) |
| Ponca City to Cerkezkoy | 6,026.47 mi (9,698.66 km) |
