| Healdsburg to Spello | 6,148.22 mi (9,894.60 km) |
| Healdsburg to Spilamberto | 6,013.60 mi (9,677.96 km) |
| Healdsburg to Spilimbergo | 5,972.33 mi (9,611.53 km) |
| Healdsburg to Spinea | 5,989.80 mi (9,639.66 km) |
| Healdsburg to Spoleto | 6,162.03 mi (9,916.82 km) |
| Healdsburg to Spoltore | 6,219.50 mi (10,009.32 km) |
| Healdsburg to Spresiano | 5,975.48 mi (9,616.61 km) |
| Healdsburg to Squinzano | 6,443.27 mi (10,369.44 km) |
| Healdsburg to Statte | 6,413.05 mi (10,320.80 km) |
| Healdsburg to Stezzano | 5,912.24 mi (9,514.82 km) |
| Healdsburg to Strada | 6,076.26 mi (9,778.80 km) |
| Healdsburg to Stradella | 5,934.29 mi (9,550.31 km) |
| Healdsburg to Striano | 6,327.13 mi (10,182.54 km) |
| Healdsburg to Subiaco | 6,221.25 mi (10,012.13 km) |
| Healdsburg to Sulmona | 6,237.44 mi (10,038.19 km) |
