| Diamond Bar to Argentona | 5,985.91 mi (9,633.39 km) |
| Diamond Bar to Arico el Nuevo | 5,739.21 mi (9,236.36 km) |
| Diamond Bar to Armilla | 5,953.67 mi (9,581.50 km) |
| Diamond Bar to Arnedo | 5,784.79 mi (9,309.72 km) |
| Diamond Bar to Arona | 5,733.66 mi (9,227.44 km) |
| Diamond Bar to Arrecife | 5,853.53 mi (9,420.35 km) |
| Diamond Bar to Arrigorriaga | 5,709.74 mi (9,188.95 km) |
| Diamond Bar to Arroyomolinos | 5,802.08 mi (9,337.54 km) |
| Diamond Bar to Arteijo | 5,485.50 mi (8,828.06 km) |
| Diamond Bar to Arucas | 5,790.57 mi (9,319.02 km) |
| Diamond Bar to Aspe | 6,015.41 mi (9,680.86 km) |
| Diamond Bar to Astorga | 5,619.10 mi (9,043.07 km) |
| Diamond Bar to Atarfe | 5,947.33 mi (9,571.30 km) |
| Diamond Bar to Avila | 5,753.52 mi (9,259.40 km) |
| Diamond Bar to Aviles | 5,577.68 mi (8,976.41 km) |
