| Thornton to Dallas (Texas) | 4,613.27 mi (7,424.34 km) |
| Thornton to Dalton (Georgia) | 4,061.69 mi (6,536.66 km) |
| Thornton to Daly City (California) | 5,197.01 mi (8,363.77 km) |
| Thornton to Damascus (Maryland) | 3,538.49 mi (5,694.64 km) |
| Thornton to Damascus (Oregon) | 4,744.75 mi (7,635.93 km) |
| Thornton to Dana Point (California) | 5,298.88 mi (8,527.72 km) |
| Thornton to Danbury (Connecticut) | 3,294.12 mi (5,301.37 km) |
| Thornton to Dania Beach (Florida) | 4,317.43 mi (6,948.24 km) |
| Thornton to Danville (California) | 5,175.24 mi (8,328.75 km) |
| Thornton to Danville (Illinois) | 3,896.08 mi (6,270.14 km) |
| Thornton to Danville (Indiana) | 3,873.21 mi (6,233.34 km) |
| Thornton to Danville (Kentucky) | 3,911.24 mi (6,294.54 km) |
| Thornton to Danville (Virginia) | 3,754.03 mi (6,041.53 km) |
| Thornton to Daphne (Alabama) | 4,387.30 mi (7,060.68 km) |
| Thornton to Darby (Pennsylvania) | 3,432.13 mi (5,523.48 km) |
