| Harstad to Caguas (Puerto Rico) | 4,861.74 mi (7,824.21 km) |
| Harstad to Cahokia (Illinois) | 4,146.25 mi (6,672.74 km) |
| Harstad to Calabasas (California) | 4,967.36 mi (7,994.19 km) |
| Harstad to Caldwell (Idaho) | 4,306.71 mi (6,930.97 km) |
| Harstad to Caledonia (Wisconsin) | 3,830.04 mi (6,163.85 km) |
| Harstad to Calera (Alabama) | 4,415.31 mi (7,105.76 km) |
| Harstad to Calexico (California) | 5,013.54 mi (8,068.51 km) |
| Harstad to Calhoun (Georgia) | 4,287.58 mi (6,900.19 km) |
| Harstad to California (Maryland) | 3,852.20 mi (6,199.51 km) |
| Harstad to California City (California) | 4,887.23 mi (7,865.24 km) |
| Harstad to Callaway (Florida) | 4,578.47 mi (7,368.34 km) |
| Harstad to Calumet City (Illinois) | 3,897.18 mi (6,271.91 km) |
| Harstad to Calverton (Maryland) | 3,815.66 mi (6,140.72 km) |
| Harstad to Camano (Washington) | 4,086.41 mi (6,576.43 km) |
| Harstad to Camarillo (California) | 4,967.21 mi (7,993.96 km) |
