| Harstad to Cloverly (Maryland) | 3,813.84 mi (6,137.79 km) |
| Harstad to Clovis (California) | 4,803.51 mi (7,730.51 km) |
| Harstad to Clovis (New Mexico) | 4,678.22 mi (7,528.87 km) |
| Harstad to Clute (Texas) | 4,869.35 mi (7,836.45 km) |
| Harstad to Coachella (California) | 4,957.38 mi (7,978.13 km) |
| Harstad to Coalinga (California) | 4,858.64 mi (7,819.22 km) |
| Harstad to Coamo (Puerto Rico) | 4,879.79 mi (7,853.26 km) |
| Harstad to Coatesville (Pennsylvania) | 3,731.59 mi (6,005.41 km) |
| Harstad to Cockeysville (Maryland) | 3,781.92 mi (6,086.42 km) |
| Harstad to Cocoa (Florida) | 4,577.66 mi (7,367.04 km) |
| Harstad to Cocoa Beach (Florida) | 4,577.46 mi (7,366.71 km) |
| Harstad to Coconut Creek (Florida) | 4,697.46 mi (7,559.83 km) |
| Harstad to Coeur d'Alene (Idaho) | 4,041.41 mi (6,504.02 km) |
| Harstad to Cohoes (New York) | 3,510.20 mi (5,649.13 km) |
| Harstad to Cold Springs (Nevada) | 4,617.15 mi (7,430.58 km) |
