| Sintra to Solofra | 1,289.84 mi (2,075.80 km) |
| Sintra to Somma Lombardo | 1,037.06 mi (1,668.99 km) |
| Sintra to Somma Vesuviana | 1,268.19 mi (2,040.95 km) |
| Sintra to Sommacampagna | 1,129.30 mi (1,817.43 km) |
| Sintra to Sona | 1,129.18 mi (1,817.25 km) |
| Sintra to Sondrio | 1,101.55 mi (1,772.78 km) |
| Sintra to Sora | 1,225.85 mi (1,972.82 km) |
| Sintra to Sorbolo | 1,099.93 mi (1,770.16 km) |
| Sintra to Soresina | 1,080.91 mi (1,739.56 km) |
| Sintra to Sorisole | 1,081.66 mi (1,740.76 km) |
| Sintra to Sorrento | 1,265.37 mi (2,036.42 km) |
| Sintra to Sorso | 961.89 mi (1,548.02 km) |
| Sintra to Sortino | 1,330.78 mi (2,141.69 km) |
| Sintra to Soverato Marina | 1,393.14 mi (2,242.05 km) |
| Sintra to Sovicille | 1,115.13 mi (1,794.63 km) |
