| Okmulgee to Cervignano del Friuli | 5,299.69 mi (8,529.03 km) |
| Okmulgee to Cesa | 5,544.50 mi (8,923.02 km) |
| Okmulgee to Cesano Maderno | 5,145.68 mi (8,281.18 km) |
| Okmulgee to Cesena | 5,328.91 mi (8,576.05 km) |
| Okmulgee to Cesenatico | 5,332.21 mi (8,581.37 km) |
| Okmulgee to Cetraro | 5,678.96 mi (9,139.40 km) |
| Okmulgee to Cherasco | 5,133.81 mi (8,262.07 km) |
| Okmulgee to Chiampo | 5,232.45 mi (8,420.82 km) |
| Okmulgee to Chiaravalle | 5,394.57 mi (8,681.73 km) |
| Okmulgee to Chiari | 5,179.13 mi (8,335.00 km) |
| Okmulgee to Chiavari | 5,206.08 mi (8,378.37 km) |
| Okmulgee to Chieri | 5,117.65 mi (8,236.06 km) |
| Okmulgee to Chieti | 5,481.46 mi (8,821.56 km) |
| Okmulgee to Chioggia | 5,284.76 mi (8,504.99 km) |
| Okmulgee to Chiusi | 5,364.59 mi (8,633.48 km) |
