| Estoril to Solofra | 1,291.97 mi (2,079.22 km) |
| Estoril to Somma Lombardo | 1,041.11 mi (1,675.51 km) |
| Estoril to Somma Vesuviana | 1,270.32 mi (2,044.39 km) |
| Estoril to Sommacampagna | 1,133.09 mi (1,823.53 km) |
| Estoril to Sona | 1,132.99 mi (1,823.37 km) |
| Estoril to Sondrio | 1,105.66 mi (1,779.39 km) |
| Estoril to Sora | 1,228.28 mi (1,976.72 km) |
| Estoril to Sorbolo | 1,103.57 mi (1,776.02 km) |
| Estoril to Soresina | 1,084.74 mi (1,745.72 km) |
| Estoril to Sorisole | 1,085.65 mi (1,747.18 km) |
| Estoril to Sorrento | 1,267.42 mi (2,039.72 km) |
| Estoril to Sorso | 964.02 mi (1,551.44 km) |
| Estoril to Sortino | 1,331.66 mi (2,143.10 km) |
| Estoril to Soverato Marina | 1,394.59 mi (2,244.38 km) |
| Estoril to Sovicille | 1,118.18 mi (1,799.54 km) |
