| Harstad to Cicero (Illinois) | 3,887.23 mi (6,255.90 km) |
| Harstad to Cimarron Hills (Colorado) | 4,419.59 mi (7,112.65 km) |
| Harstad to Cincinnati (Ohio) | 3,984.75 mi (6,412.84 km) |
| Harstad to Cinco Ranch (Texas) | 4,831.04 mi (7,774.80 km) |
| Harstad to Circleville (Ohio) | 3,920.09 mi (6,308.77 km) |
| Harstad to Citrus (California) | 4,956.75 mi (7,977.12 km) |
| Harstad to Citrus Heights (California) | 4,702.28 mi (7,567.59 km) |
| Harstad to Citrus Park (Florida) | 4,639.91 mi (7,467.22 km) |
| Harstad to Claiborne (Louisiana) | 4,574.13 mi (7,361.35 km) |
| Harstad to Claremont (California) | 4,953.38 mi (7,971.70 km) |
| Harstad to Claremont (New Hampshire) | 3,440.74 mi (5,537.34 km) |
| Harstad to Claremore (Oklahoma) | 4,404.79 mi (7,088.82 km) |
| Harstad to Clarksburg (Maryland) | 3,812.78 mi (6,136.07 km) |
| Harstad to Clarksburg (West Virginia) | 3,880.25 mi (6,244.66 km) |
| Harstad to Clarksdale (Mississippi) | 4,432.66 mi (7,133.68 km) |
