| Oristano to Cookeville (Tennessee) | 4,869.82 mi (7,837.21 km) |
| Oristano to Coolidge (Arizona) | 6,116.41 mi (9,843.41 km) |
| Oristano to Coon Rapids (Minnesota) | 4,830.30 mi (7,773.61 km) |
| Oristano to Cooper City (Florida) | 5,032.14 mi (8,098.44 km) |
| Oristano to Coos Bay (Oregon) | 5,974.32 mi (9,614.74 km) |
| Oristano to Copiague (New York) | 4,149.13 mi (6,677.38 km) |
| Oristano to Coppell (Texas) | 5,517.29 mi (8,879.22 km) |
| Oristano to Copperas Cove (Texas) | 5,642.44 mi (9,080.63 km) |
| Oristano to Coral Gables (Florida) | 5,045.53 mi (8,120.00 km) |
| Oristano to Coral Springs (Florida) | 5,021.57 mi (8,081.43 km) |
| Oristano to Coral Terrace (Florida) | 5,045.44 mi (8,119.85 km) |
| Oristano to Coralville (Iowa) | 4,906.14 mi (7,895.68 km) |
| Oristano to Coram (New York) | 4,124.42 mi (6,637.62 km) |
| Oristano to Corcoran (California) | 6,238.71 mi (10,040.23 km) |
| Oristano to Cordele (Georgia) | 4,959.25 mi (7,981.14 km) |
