| Thornton to Allouez (Wisconsin) | 3,703.64 mi (5,960.44 km) |
| Thornton to Aloha (Oregon) | 4,752.08 mi (7,647.74 km) |
| Thornton to Alpena (Michigan) | 3,508.63 mi (5,646.59 km) |
| Thornton to Alpharetta (Georgia) | 4,069.61 mi (6,549.40 km) |
| Thornton to Alpine (California) | 5,305.48 mi (8,538.35 km) |
| Thornton to Alpine (Utah) | 4,716.01 mi (7,589.69 km) |
| Thornton to Alsip (Illinois) | 3,826.61 mi (6,158.33 km) |
| Thornton to Altadena (California) | 5,270.94 mi (8,482.76 km) |
| Thornton to Altamont (Oregon) | 4,912.31 mi (7,905.61 km) |
| Thornton to Altamonte Springs (Florida) | 4,231.64 mi (6,810.17 km) |
| Thornton to Alton (Illinois) | 4,051.97 mi (6,521.01 km) |
| Thornton to Alton (Texas) | 5,021.48 mi (8,081.28 km) |
| Thornton to Altoona (Iowa) | 4,036.56 mi (6,496.22 km) |
| Thornton to Altoona (Pennsylvania) | 3,527.59 mi (5,677.11 km) |
| Thornton to Altus (Oklahoma) | 4,607.57 mi (7,415.16 km) |
