| Highlands Ranch to Arapgir | 6,536.64 mi (10,519.70 km) |
| Highlands Ranch to Ardahan | 6,505.11 mi (10,468.96 km) |
| Highlands Ranch to Ardesen | 6,462.33 mi (10,400.12 km) |
| Highlands Ranch to Arhavi | 6,460.49 mi (10,397.15 km) |
| Highlands Ranch to Aricak | 6,605.71 mi (10,630.86 km) |
| Highlands Ranch to Armutlu | 6,187.17 mi (9,957.30 km) |
| Highlands Ranch to Arnavutkoy | 6,146.40 mi (9,891.68 km) |
| Highlands Ranch to Arpacay | 6,535.13 mi (10,517.28 km) |
| Highlands Ranch to Arsin | 6,453.26 mi (10,385.53 km) |
| Highlands Ranch to Arsuz | 6,628.52 mi (10,667.57 km) |
| Highlands Ranch to Artvin | 6,481.33 mi (10,430.69 km) |
| Highlands Ranch to Asagicinik | 6,347.15 mi (10,214.76 km) |
| Highlands Ranch to Asarcik | 6,359.64 mi (10,234.84 km) |
| Highlands Ranch to Askale | 6,534.72 mi (10,516.62 km) |
| Highlands Ranch to Aslanapa | 6,292.63 mi (10,127.01 km) |
