| Highlands Ranch to Arcata (California) | 1,010.30 mi (1,625.92 km) |
| Highlands Ranch to Archdale (North Carolina) | 1,385.18 mi (2,229.24 km) |
| Highlands Ranch to Arden-Arcade (California) | 881.61 mi (1,418.82 km) |
| Highlands Ranch to Ardmore (Oklahoma) | 569.27 mi (916.15 km) |
| Highlands Ranch to Ardmore (Pennsylvania) | 1,568.93 mi (2,524.94 km) |
| Highlands Ranch to Arecibo (Puerto Rico) | 2,701.25 mi (4,347.24 km) |
| Highlands Ranch to Arkadelphia (Arkansas) | 756.01 mi (1,216.68 km) |
| Highlands Ranch to Arkansas City (Kansas) | 462.46 mi (744.26 km) |
| Highlands Ranch to Arlington (Tennessee) | 889.16 mi (1,430.96 km) |
| Highlands Ranch to Arlington (Texas) | 643.84 mi (1,036.17 km) |
| Highlands Ranch to Arlington (Virginia) | 1,486.75 mi (2,392.69 km) |
| Highlands Ranch to Arlington (Washington) | 1,039.04 mi (1,672.18 km) |
| Highlands Ranch to Arlington Heights (Illinois) | 904.04 mi (1,454.91 km) |
| Highlands Ranch to Arnold (Maryland) | 1,516.56 mi (2,440.66 km) |
| Highlands Ranch to Arnold (Missouri) | 786.86 mi (1,266.33 km) |
