| Diamond Bar to Arapgir | 7,167.73 mi (11,535.35 km) |
| Diamond Bar to Ardahan | 7,101.37 mi (11,428.55 km) |
| Diamond Bar to Ardesen | 7,069.75 mi (11,377.67 km) |
| Diamond Bar to Arhavi | 7,065.34 mi (11,370.56 km) |
| Diamond Bar to Aricak | 7,227.83 mi (11,632.06 km) |
| Diamond Bar to Armutlu | 6,867.01 mi (11,051.38 km) |
| Diamond Bar to Arnavutkoy | 6,824.07 mi (10,982.28 km) |
| Diamond Bar to Arpacay | 7,127.97 mi (11,471.37 km) |
| Diamond Bar to Arsin | 7,068.32 mi (11,375.36 km) |
| Diamond Bar to Arsuz | 7,285.10 mi (11,724.24 km) |
| Diamond Bar to Artvin | 7,083.27 mi (11,399.43 km) |
| Diamond Bar to Asagicinik | 6,983.14 mi (11,238.27 km) |
| Diamond Bar to Asarcik | 6,997.00 mi (11,260.58 km) |
| Diamond Bar to Askale | 7,148.43 mi (11,504.29 km) |
| Diamond Bar to Aslanapa | 6,972.23 mi (11,220.72 km) |
