| Ponca City to Carmignano | 5,281.49 mi (8,499.73 km) |
| Ponca City to Carovigno | 5,679.66 mi (9,140.52 km) |
| Ponca City to Carpenedolo | 5,192.87 mi (8,357.12 km) |
| Ponca City to Carpi | 5,234.95 mi (8,424.84 km) |
| Ponca City to Carrara | 5,234.41 mi (8,423.97 km) |
| Ponca City to Carugate | 5,142.81 mi (8,276.55 km) |
| Ponca City to Casal di Principe | 5,527.19 mi (8,895.16 km) |
| Ponca City to Casale Monferrato | 5,126.02 mi (8,249.52 km) |
| Ponca City to Casale sul Sile | 5,255.11 mi (8,457.29 km) |
| Ponca City to Casalecchio di Reno | 5,263.23 mi (8,470.35 km) |
| Ponca City to Casalgrande | 5,237.68 mi (8,429.23 km) |
| Ponca City to Casalmaggiore | 5,208.26 mi (8,381.88 km) |
| Ponca City to Casalnuovo di Napoli | 5,540.27 mi (8,916.20 km) |
| Ponca City to Casalpusterlengo | 5,170.60 mi (8,321.27 km) |
| Ponca City to Casaluce | 5,530.58 mi (8,900.62 km) |
