| Harstad to Castrovillari | 2,002.67 mi (3,222.98 km) |
| Harstad to Catania | 2,163.40 mi (3,481.66 km) |
| Harstad to Catanzaro | 2,065.97 mi (3,324.85 km) |
| Harstad to Cattolica | 1,721.31 mi (2,770.18 km) |
| Harstad to Cava de' Tirreni | 1,942.79 mi (3,126.62 km) |
| Harstad to Cavallino | 1,969.04 mi (3,168.86 km) |
| Harstad to Cavarzere | 1,642.64 mi (2,643.57 km) |
| Harstad to Cave | 1,869.10 mi (3,008.03 km) |
| Harstad to Cavriago | 1,678.87 mi (2,701.88 km) |
| Harstad to Cavriglia | 1,756.43 mi (2,826.71 km) |
| Harstad to Cazzago San Martino | 1,620.65 mi (2,608.19 km) |
| Harstad to Ceccano | 1,885.39 mi (3,034.23 km) |
| Harstad to Cecina | 1,774.14 mi (2,855.20 km) |
| Harstad to Cefalu | 2,127.99 mi (3,424.67 km) |
| Harstad to Ceglie Messapico | 1,945.37 mi (3,130.78 km) |
