| Cascais to Solofra | 1,293.00 mi (2,080.88 km) |
| Cascais to Somma Lombardo | 1,042.10 mi (1,677.10 km) |
| Cascais to Somma Vesuviana | 1,271.36 mi (2,046.05 km) |
| Cascais to Sommacampagna | 1,134.09 mi (1,825.14 km) |
| Cascais to Sona | 1,133.99 mi (1,824.98 km) |
| Cascais to Sondrio | 1,106.64 mi (1,780.97 km) |
| Cascais to Sora | 1,229.31 mi (1,978.39 km) |
| Cascais to Sorbolo | 1,104.57 mi (1,777.64 km) |
| Cascais to Soresina | 1,085.74 mi (1,747.33 km) |
| Cascais to Sorisole | 1,086.64 mi (1,748.78 km) |
| Cascais to Sorrento | 1,268.45 mi (2,041.38 km) |
| Cascais to Sorso | 965.05 mi (1,553.10 km) |
| Cascais to Sortino | 1,332.66 mi (2,144.72 km) |
| Cascais to Soverato Marina | 1,395.62 mi (2,246.03 km) |
| Cascais to Sovicille | 1,119.21 mi (1,801.19 km) |
