| Ponca City to Corato | 5,609.83 mi (9,028.15 km) |
| Ponca City to Corbetta | 5,130.14 mi (8,256.16 km) |
| Ponca City to Corciano | 5,360.56 mi (8,626.99 km) |
| Ponca City to Cordenons | 5,252.23 mi (8,452.64 km) |
| Ponca City to Cori | 5,450.83 mi (8,772.27 km) |
| Ponca City to Coriano | 5,336.39 mi (8,588.09 km) |
| Ponca City to Corigliano Calabro | 5,686.11 mi (9,150.91 km) |
| Ponca City to Corleone | 5,637.34 mi (9,072.43 km) |
| Ponca City to Cormano | 5,136.37 mi (8,266.19 km) |
| Ponca City to Cornaredo | 5,133.28 mi (8,261.22 km) |
| Ponca City to Cornate d'Adda | 5,143.79 mi (8,278.13 km) |
| Ponca City to Cornedo Vicentino | 5,217.22 mi (8,396.30 km) |
| Ponca City to Correggio | 5,231.60 mi (8,419.45 km) |
| Ponca City to Corridonia | 5,403.29 mi (8,695.76 km) |
| Ponca City to Corsico | 5,139.28 mi (8,270.87 km) |
