| Ponca City to Cocentaina | 5,003.53 mi (8,052.41 km) |
| Ponca City to Coin | 4,882.55 mi (7,857.71 km) |
| Ponca City to Colindres | 4,700.70 mi (7,565.04 km) |
| Ponca City to Collado-Villalba | 4,773.52 mi (7,682.24 km) |
| Ponca City to Colmenar Viejo | 4,783.50 mi (7,698.29 km) |
| Ponca City to Colmenarejo | 4,775.72 mi (7,685.78 km) |
| Ponca City to Conil de la Frontera | 4,834.03 mi (7,779.62 km) |
| Ponca City to Consuegra | 4,833.76 mi (7,779.19 km) |
| Ponca City to Corbera de Llobregat | 5,005.78 mi (8,056.02 km) |
| Ponca City to Cordoba | 4,836.91 mi (7,784.25 km) |
| Ponca City to Coria del Rio | 4,799.11 mi (7,723.42 km) |
| Ponca City to Crevillente | 5,005.74 mi (8,055.97 km) |
| Ponca City to Cuarte de Huerva | 4,876.03 mi (7,847.21 km) |
| Ponca City to Cubellas | 5,002.62 mi (8,050.94 km) |
| Ponca City to Cuellar | 4,732.67 mi (7,616.50 km) |
