| Thornton to Cicero (Illinois) | 3,819.03 mi (6,146.14 km) |
| Thornton to Cimarron Hills (Colorado) | 4,572.29 mi (7,358.39 km) |
| Thornton to Cincinnati (Ohio) | 3,827.57 mi (6,159.87 km) |
| Thornton to Cinco Ranch (Texas) | 4,738.14 mi (7,625.30 km) |
| Thornton to Circleville (Ohio) | 3,745.02 mi (6,027.02 km) |
| Thornton to Citrus (California) | 5,267.72 mi (8,477.58 km) |
| Thornton to Citrus Heights (California) | 5,103.92 mi (8,213.97 km) |
| Thornton to Citrus Park (Florida) | 4,309.05 mi (6,934.75 km) |
| Thornton to Claiborne (Louisiana) | 4,454.59 mi (7,168.97 km) |
| Thornton to Claremont (California) | 5,261.71 mi (8,467.90 km) |
| Thornton to Claremont (New Hampshire) | 3,162.13 mi (5,088.96 km) |
| Thornton to Claremore (Oklahoma) | 4,385.53 mi (7,057.83 km) |
| Thornton to Clarksburg (Maryland) | 3,543.38 mi (5,702.52 km) |
| Thornton to Clarksburg (West Virginia) | 3,659.70 mi (5,889.72 km) |
| Thornton to Clarksdale (Mississippi) | 4,306.64 mi (6,930.87 km) |
