| Oristano to Cloverly (Maryland) | 4,368.77 mi (7,030.85 km) |
| Oristano to Clovis (California) | 6,201.78 mi (9,980.80 km) |
| Oristano to Clovis (New Mexico) | 5,710.26 mi (9,189.78 km) |
| Oristano to Clute (Texas) | 5,625.85 mi (9,053.92 km) |
| Oristano to Coachella (California) | 6,249.31 mi (10,057.28 km) |
| Oristano to Coalinga (California) | 6,261.06 mi (10,076.20 km) |
| Oristano to Coamo (Puerto Rico) | 4,639.50 mi (7,466.56 km) |
| Oristano to Coatesville (Pennsylvania) | 4,283.78 mi (6,894.07 km) |
| Oristano to Cockeysville (Maryland) | 4,338.52 mi (6,982.17 km) |
| Oristano to Cocoa (Florida) | 4,960.22 mi (7,982.70 km) |
| Oristano to Cocoa Beach (Florida) | 4,955.35 mi (7,974.86 km) |
| Oristano to Coconut Creek (Florida) | 5,017.42 mi (8,074.76 km) |
| Oristano to Coeur d'Alene (Idaho) | 5,519.65 mi (8,883.02 km) |
| Oristano to Cohoes (New York) | 4,094.61 mi (6,589.64 km) |
| Oristano to Cold Springs (Nevada) | 6,053.21 mi (9,741.69 km) |
