| Highlands Ranch to Arcore | 5,286.12 mi (8,507.18 km) |
| Highlands Ranch to Ardea | 5,596.58 mi (9,006.83 km) |
| Highlands Ranch to Arenzano | 5,322.22 mi (8,565.28 km) |
| Highlands Ranch to Arese | 5,281.34 mi (8,499.50 km) |
| Highlands Ranch to Arezzo | 5,481.19 mi (8,821.13 km) |
| Highlands Ranch to Argelato | 5,408.03 mi (8,703.38 km) |
| Highlands Ranch to Argenta | 5,422.88 mi (8,727.28 km) |
| Highlands Ranch to Ariano Irpino | 5,709.86 mi (9,189.13 km) |
| Highlands Ranch to Ariccia | 5,595.76 mi (9,005.51 km) |
| Highlands Ranch to Arluno | 5,279.04 mi (8,495.79 km) |
| Highlands Ranch to Arona | 5,253.74 mi (8,455.07 km) |
| Highlands Ranch to Artena | 5,603.84 mi (9,018.51 km) |
| Highlands Ranch to Arzachena | 5,507.25 mi (8,863.07 km) |
| Highlands Ranch to Arzano | 5,692.92 mi (9,161.86 km) |
| Highlands Ranch to Arzignano | 5,361.51 mi (8,628.52 km) |
