| Ponca City to Busto Arsizio | 5,121.61 mi (8,242.44 km) |
| Ponca City to Busto Garolfo | 5,125.62 mi (8,248.89 km) |
| Ponca City to Cabras | 5,346.24 mi (8,603.94 km) |
| Ponca City to Cadelbosco di Sopra | 5,224.71 mi (8,408.36 km) |
| Ponca City to Cadoneghe | 5,246.49 mi (8,443.41 km) |
| Ponca City to Cagli | 5,356.57 mi (8,620.57 km) |
| Ponca City to Cagliari | 5,400.47 mi (8,691.22 km) |
| Ponca City to Cairo Montenotte | 5,148.75 mi (8,286.11 km) |
| Ponca City to Caivano | 5,536.79 mi (8,910.61 km) |
| Ponca City to Calcinaia | 5,271.53 mi (8,483.70 km) |
| Ponca City to Calcinato | 5,188.27 mi (8,349.72 km) |
| Ponca City to Calderara di Reno | 5,259.01 mi (8,463.56 km) |
| Ponca City to Caldogno | 5,223.41 mi (8,406.27 km) |
| Ponca City to Calenzano | 5,285.19 mi (8,505.70 km) |
| Ponca City to Calolziocorte | 5,136.25 mi (8,266.00 km) |
