| Ponca City to Camardi | 6,445.23 mi (10,372.59 km) |
| Ponca City to Camas | 6,351.37 mi (10,221.55 km) |
| Ponca City to Camliyayla | 6,469.56 mi (10,411.76 km) |
| Ponca City to Camoluk | 6,431.93 mi (10,351.19 km) |
| Ponca City to Can | 6,058.64 mi (9,750.44 km) |
| Ponca City to Canakkale | 6,029.61 mi (9,703.72 km) |
| Ponca City to Cankaya | 6,261.85 mi (10,077.48 km) |
| Ponca City to Cankiri | 6,248.62 mi (10,056.18 km) |
| Ponca City to Cardak | 6,266.15 mi (10,084.40 km) |
| Ponca City to Carsamba | 6,311.55 mi (10,157.46 km) |
| Ponca City to Carsibasi | 6,396.35 mi (10,293.93 km) |
| Ponca City to Cat | 6,527.42 mi (10,504.87 km) |
| Ponca City to Catalagzi | 6,143.32 mi (9,886.72 km) |
| Ponca City to Catalca | 6,049.63 mi (9,735.93 km) |
| Ponca City to Catalpinar | 6,351.40 mi (10,221.60 km) |
