| Skien to Caguas (Puerto Rico) | 4,633.48 mi (7,456.87 km) |
| Skien to Cahokia (Illinois) | 4,291.01 mi (6,905.71 km) |
| Skien to Calabasas (California) | 5,340.62 mi (8,594.90 km) |
| Skien to Caldwell (Idaho) | 4,700.72 mi (7,565.08 km) |
| Skien to Caledonia (Wisconsin) | 3,983.28 mi (6,410.46 km) |
| Skien to Calera (Alabama) | 4,491.98 mi (7,229.14 km) |
| Skien to Calexico (California) | 5,354.60 mi (8,617.40 km) |
| Skien to Calhoun (Georgia) | 4,355.46 mi (7,009.44 km) |
| Skien to California (Maryland) | 3,865.06 mi (6,220.21 km) |
| Skien to California City (California) | 5,257.68 mi (8,461.42 km) |
| Skien to Callaway (Florida) | 4,624.50 mi (7,442.41 km) |
| Skien to Calumet City (Illinois) | 4,038.91 mi (6,499.99 km) |
| Skien to Calverton (Maryland) | 3,838.86 mi (6,178.04 km) |
| Skien to Camano (Washington) | 4,538.31 mi (7,303.70 km) |
| Skien to Camarillo (California) | 5,343.77 mi (8,599.97 km) |
