| Thornton to Caguas (Puerto Rico) | 4,160.47 mi (6,695.63 km) |
| Thornton to Cahokia (Illinois) | 4,069.91 mi (6,549.89 km) |
| Thornton to Calabasas (California) | 5,290.75 mi (8,514.64 km) |
| Thornton to Caldwell (Idaho) | 4,685.92 mi (7,541.25 km) |
| Thornton to Caledonia (Wisconsin) | 3,777.56 mi (6,079.39 km) |
| Thornton to Calera (Alabama) | 4,214.05 mi (6,781.86 km) |
| Thornton to Calexico (California) | 5,273.97 mi (8,487.63 km) |
| Thornton to Calhoun (Georgia) | 4,074.38 mi (6,557.08 km) |
| Thornton to California (Maryland) | 3,556.82 mi (5,724.14 km) |
| Thornton to California City (California) | 5,206.96 mi (8,379.79 km) |
| Thornton to Callaway (Florida) | 4,321.32 mi (6,954.49 km) |
| Thornton to Calumet City (Illinois) | 3,822.45 mi (6,151.64 km) |
| Thornton to Calverton (Maryland) | 3,538.78 mi (5,695.11 km) |
| Thornton to Camano (Washington) | 4,586.05 mi (7,380.53 km) |
| Thornton to Camarillo (California) | 5,297.01 mi (8,524.72 km) |
