| Skien to Castle Rock (Colorado) | 4,669.00 mi (7,514.03 km) |
| Skien to Castro Valley (California) | 5,191.68 mi (8,355.19 km) |
| Skien to Catalina Foothills (Arizona) | 5,259.37 mi (8,464.14 km) |
| Skien to Cataño (Puerto Rico) | 4,625.23 mi (7,443.59 km) |
| Skien to Cathedral City (California) | 5,306.62 mi (8,540.19 km) |
| Skien to Catonsville (Maryland) | 3,820.79 mi (6,148.97 km) |
| Skien to Cave Spring (Virginia) | 4,040.54 mi (6,502.62 km) |
| Skien to Cayce (South Carolina) | 4,257.71 mi (6,852.12 km) |
| Skien to Cayey (Puerto Rico) | 4,644.68 mi (7,474.88 km) |
| Skien to Cedar City (Utah) | 4,984.93 mi (8,022.48 km) |
| Skien to Cedar Falls (Iowa) | 4,136.08 mi (6,656.38 km) |
| Skien to Cedar Hill (Texas) | 4,845.11 mi (7,797.45 km) |
| Skien to Cedar Lake (Indiana) | 4,049.00 mi (6,516.23 km) |
| Skien to Cedar Mill (Oregon) | 4,711.60 mi (7,582.59 km) |
| Skien to Cedar Park (Texas) | 4,993.75 mi (8,036.67 km) |
