| Diamond Bar to Allison Park (Pennsylvania) | 2,112.99 mi (3,400.53 km) |
| Diamond Bar to Allouez (Wisconsin) | 1,738.04 mi (2,797.11 km) |
| Diamond Bar to Aloha (Oregon) | 837.82 mi (1,348.35 km) |
| Diamond Bar to Alpena (Michigan) | 1,966.59 mi (3,164.93 km) |
| Diamond Bar to Alpharetta (Georgia) | 1,911.77 mi (3,076.69 km) |
| Diamond Bar to Alpine (California) | 100.46 mi (161.67 km) |
| Diamond Bar to Alpine (Utah) | 556.45 mi (895.51 km) |
| Diamond Bar to Alsip (Illinois) | 1,714.68 mi (2,759.51 km) |
| Diamond Bar to Altadena (California) | 22.60 mi (36.37 km) |
| Diamond Bar to Altamont (Oregon) | 604.85 mi (973.41 km) |
| Diamond Bar to Altamonte Springs (Florida) | 2,169.35 mi (3,491.23 km) |
| Diamond Bar to Alton (Illinois) | 1,567.92 mi (2,523.33 km) |
| Diamond Bar to Alton (Texas) | 1,278.57 mi (2,057.66 km) |
| Diamond Bar to Altoona (Iowa) | 1,423.45 mi (2,290.82 km) |
| Diamond Bar to Altoona (Pennsylvania) | 2,194.91 mi (3,532.37 km) |
