| Oklahoma City to Cervignano del Friuli | 5,364.02 mi (8,632.56 km) |
| Oklahoma City to Cesa | 5,612.06 mi (9,031.74 km) |
| Oklahoma City to Cesano Maderno | 5,211.90 mi (8,387.75 km) |
| Oklahoma City to Cesena | 5,395.01 mi (8,682.43 km) |
| Oklahoma City to Cesenatico | 5,398.20 mi (8,687.57 km) |
| Oklahoma City to Cetraro | 5,746.77 mi (9,248.53 km) |
| Oklahoma City to Cherasco | 5,201.30 mi (8,370.68 km) |
| Oklahoma City to Chiampo | 5,297.87 mi (8,526.10 km) |
| Oklahoma City to Chiaravalle | 5,460.61 mi (8,788.00 km) |
| Oklahoma City to Chiari | 5,245.14 mi (8,441.24 km) |
| Oklahoma City to Chiavari | 5,273.24 mi (8,486.47 km) |
| Oklahoma City to Chieri | 5,184.88 mi (8,344.25 km) |
| Oklahoma City to Chieti | 5,548.06 mi (8,928.73 km) |
| Oklahoma City to Chioggia | 5,350.01 mi (8,610.01 km) |
| Oklahoma City to Chiusi | 5,431.66 mi (8,741.41 km) |
