| Okmulgee to Chivasso | 5,113.26 mi (8,228.99 km) |
| Okmulgee to Ciampino | 5,442.44 mi (8,758.76 km) |
| Okmulgee to Cicciano | 5,556.60 mi (8,942.49 km) |
| Okmulgee to Cingoli | 5,399.99 mi (8,690.45 km) |
| Okmulgee to Cinisello Balsamo | 5,151.72 mi (8,290.89 km) |
| Okmulgee to Cinisi | 5,619.84 mi (9,044.26 km) |
| Okmulgee to Cirie | 5,100.04 mi (8,207.72 km) |
| Okmulgee to Ciro Marina | 5,732.44 mi (9,225.48 km) |
| Okmulgee to Cislago | 5,137.87 mi (8,268.60 km) |
| Okmulgee to Cisterna di Latina | 5,460.64 mi (8,788.05 km) |
| Okmulgee to Cisternino | 5,682.60 mi (9,145.26 km) |
| Okmulgee to Citta di Castello | 5,357.53 mi (8,622.12 km) |
| Okmulgee to Citta Sant'Angelo | 5,469.59 mi (8,802.45 km) |
| Okmulgee to Cittadella | 5,247.63 mi (8,445.24 km) |
| Okmulgee to Cittanova | 5,736.05 mi (9,231.28 km) |
