| Healdsburg to Acqui Terme | 5,933.33 mi (9,548.77 km) |
| Healdsburg to Acri | 6,454.71 mi (10,387.85 km) |
| Healdsburg to Adelfia | 6,378.40 mi (10,265.04 km) |
| Healdsburg to Adrano | 6,519.51 mi (10,492.13 km) |
| Healdsburg to Adria | 6,012.32 mi (9,675.90 km) |
| Healdsburg to Afragola | 6,314.35 mi (10,161.97 km) |
| Healdsburg to Agliana | 6,049.28 mi (9,735.37 km) |
| Healdsburg to Agrate Brianza | 5,907.57 mi (9,507.31 km) |
| Healdsburg to Agrigento | 6,503.40 mi (10,466.21 km) |
| Healdsburg to Agropoli | 6,366.06 mi (10,245.18 km) |
| Healdsburg to Ala | 5,943.74 mi (9,565.52 km) |
| Healdsburg to Alassio | 5,962.27 mi (9,595.35 km) |
| Healdsburg to Alatri | 6,240.09 mi (10,042.45 km) |
| Healdsburg to Alba | 5,919.38 mi (9,526.32 km) |
| Healdsburg to Albano Laziale | 6,220.67 mi (10,011.20 km) |
