| Ponca City to Cognac | 4,751.05 mi (7,646.07 km) |
| Ponca City to Cogolin | 5,125.92 mi (8,249.36 km) |
| Ponca City to Colmar | 4,964.14 mi (7,989.01 km) |
| Ponca City to Colombes | 4,737.29 mi (7,623.93 km) |
| Ponca City to Colomiers | 4,896.91 mi (7,880.82 km) |
| Ponca City to Combs-la-Ville | 4,758.45 mi (7,657.98 km) |
| Ponca City to Comines | 4,699.12 mi (7,562.50 km) |
| Ponca City to Compiegne | 4,741.24 mi (7,630.28 km) |
| Ponca City to Concarneau | 4,528.79 mi (7,288.38 km) |
| Ponca City to Conde-sur-l'Escaut | 4,732.21 mi (7,615.75 km) |
| Ponca City to Conflans-Sainte-Honorine | 4,728.60 mi (7,609.95 km) |
| Ponca City to Corbas | 4,964.15 mi (7,989.03 km) |
| Ponca City to Corbeil-Essonnes | 4,757.49 mi (7,656.44 km) |
| Ponca City to Cormeilles-en-Parisis | 4,733.50 mi (7,617.83 km) |
| Ponca City to Cosne sur Loire | 4,819.33 mi (7,755.96 km) |
