| Ponca City to Carpentras | 5,033.41 mi (8,100.49 km) |
| Ponca City to Carquefou | 4,646.94 mi (7,478.53 km) |
| Ponca City to Carqueiranne | 5,113.64 mi (8,229.60 km) |
| Ponca City to Carrieres-sous-Poissy | 4,728.16 mi (7,609.24 km) |
| Ponca City to Carrieres-sur-Seine | 4,739.17 mi (7,626.96 km) |
| Ponca City to Carros | 5,131.63 mi (8,258.57 km) |
| Ponca City to Carvin | 4,707.00 mi (7,575.18 km) |
| Ponca City to Castanet-Tolosan | 4,907.39 mi (7,897.68 km) |
| Ponca City to Castelginest | 4,897.95 mi (7,882.49 km) |
| Ponca City to Castelnau-le-Lez | 5,002.83 mi (8,051.28 km) |
| Ponca City to Castelnaudary | 4,934.00 mi (7,940.51 km) |
| Ponca City to Castelsarrasin | 4,871.33 mi (7,839.65 km) |
| Ponca City to Castres | 4,935.67 mi (7,943.20 km) |
| Ponca City to Caudebec-les-Elbeuf | 4,676.89 mi (7,526.73 km) |
| Ponca City to Caudry | 4,737.44 mi (7,624.17 km) |
