| Healdsburg to Superior (Colorado) | 949.75 mi (1,528.48 km) |
| Healdsburg to Superior (Wisconsin) | 1,647.98 mi (2,652.17 km) |
| Healdsburg to Surprise (Arizona) | 673.20 mi (1,083.42 km) |
| Healdsburg to Susanville (California) | 172.73 mi (277.99 km) |
| Healdsburg to Sussex (Wisconsin) | 1,823.06 mi (2,933.94 km) |
| Healdsburg to Suwanee (Georgia) | 2,166.08 mi (3,485.97 km) |
| Healdsburg to Swansea (Illinois) | 1,766.09 mi (2,842.25 km) |
| Healdsburg to Sweetwater (Florida) | 2,611.19 mi (4,202.31 km) |
| Healdsburg to Sweetwater (Texas) | 1,328.01 mi (2,137.23 km) |
| Healdsburg to Sycamore (Illinois) | 1,803.94 mi (2,903.16 km) |
| Healdsburg to Sylacauga (Alabama) | 2,068.89 mi (3,329.56 km) |
| Healdsburg to Sylvania (Ohio) | 2,060.53 mi (3,316.11 km) |
| Healdsburg to Syosset (New York) | 2,592.87 mi (4,172.82 km) |
| Healdsburg to Syracuse (New York) | 2,429.84 mi (3,910.45 km) |
| Healdsburg to Syracuse (Utah) | 596.90 mi (960.61 km) |
