| Thornton to Dardenne Prairie (Missouri) | 4,080.87 mi (6,567.52 km) |
| Thornton to Darien (Illinois) | 3,832.06 mi (6,167.11 km) |
| Thornton to Davenport (Iowa) | 3,937.37 mi (6,336.59 km) |
| Thornton to Davidson (North Carolina) | 3,863.66 mi (6,217.96 km) |
| Thornton to Davie (Florida) | 4,321.40 mi (6,954.62 km) |
| Thornton to Davis (California) | 5,125.01 mi (8,247.91 km) |
| Thornton to Dayton (Nevada) | 5,021.02 mi (8,080.55 km) |
| Thornton to Dayton (Ohio) | 3,785.01 mi (6,091.38 km) |
| Thornton to Daytona Beach (Florida) | 4,191.92 mi (6,746.25 km) |
| Thornton to De Pere (Wisconsin) | 3,707.49 mi (5,966.62 km) |
| Thornton to De Witt (New York) | 3,322.84 mi (5,347.60 km) |
| Thornton to Dearborn (Michigan) | 3,627.40 mi (5,837.73 km) |
| Thornton to Dearborn Heights (Michigan) | 3,629.63 mi (5,841.32 km) |
| Thornton to DeBary (Florida) | 4,217.40 mi (6,787.25 km) |
| Thornton to Decatur (Alabama) | 4,149.87 mi (6,678.57 km) |
