| Healdsburg to Arcata (California) | 167.54 mi (269.63 km) |
| Healdsburg to Archdale (North Carolina) | 2,345.39 mi (3,774.54 km) |
| Healdsburg to Arden-Arcade (California) | 79.95 mi (128.66 km) |
| Healdsburg to Ardmore (Oklahoma) | 1,458.49 mi (2,347.22 km) |
| Healdsburg to Ardmore (Pennsylvania) | 2,514.16 mi (4,046.14 km) |
| Healdsburg to Arecibo (Puerto Rico) | 3,618.19 mi (5,822.91 km) |
| Healdsburg to Arkadelphia (Arkansas) | 1,678.59 mi (2,701.43 km) |
| Healdsburg to Arkansas City (Kansas) | 1,408.49 mi (2,266.75 km) |
| Healdsburg to Arlington (Tennessee) | 1,837.83 mi (2,957.71 km) |
| Healdsburg to Arlington (Texas) | 1,496.19 mi (2,407.88 km) |
| Healdsburg to Arlington (Virginia) | 2,439.40 mi (3,925.84 km) |
| Healdsburg to Arlington (Washington) | 660.67 mi (1,063.24 km) |
| Healdsburg to Arlington Heights (Illinois) | 1,839.23 mi (2,959.96 km) |
| Healdsburg to Arnold (Maryland) | 2,467.98 mi (3,971.83 km) |
| Healdsburg to Arnold (Missouri) | 1,747.04 mi (2,811.59 km) |
