| Humacao to Solofra | 4,927.84 mi (7,930.60 km) |
| Humacao to Somma Lombardo | 4,588.95 mi (7,385.19 km) |
| Humacao to Somma Vesuviana | 4,906.09 mi (7,895.58 km) |
| Humacao to Sommacampagna | 4,693.89 mi (7,554.08 km) |
| Humacao to Sona | 4,692.92 mi (7,552.53 km) |
| Humacao to Sondrio | 4,643.61 mi (7,473.17 km) |
| Humacao to Sora | 4,856.24 mi (7,815.36 km) |
| Humacao to Sorbolo | 4,676.93 mi (7,526.80 km) |
| Humacao to Soresina | 4,646.24 mi (7,477.41 km) |
| Humacao to Sorisole | 4,634.87 mi (7,459.11 km) |
| Humacao to Sorrento | 4,905.14 mi (7,894.06 km) |
| Humacao to Sorso | 4,602.11 mi (7,406.38 km) |
| Humacao to Sortino | 4,976.55 mi (8,008.98 km) |
| Humacao to Soverato Marina | 5,040.38 mi (8,111.71 km) |
| Humacao to Sovicille | 4,724.09 mi (7,602.68 km) |
