| Williamstown to Sesena | 3,669.59 mi (5,905.63 km) |
| Williamstown to Sestao | 3,614.54 mi (5,817.04 km) |
| Williamstown to Sevilla | 3,640.59 mi (5,858.96 km) |
| Williamstown to Sevilla La Nueva | 3,646.78 mi (5,868.93 km) |
| Williamstown to Silla | 3,849.46 mi (6,195.10 km) |
| Williamstown to Silleda | 3,383.99 mi (5,446.01 km) |
| Williamstown to Sitges | 3,897.58 mi (6,272.54 km) |
| Williamstown to Socuellamos | 3,736.68 mi (6,013.60 km) |
| Williamstown to Soller | 3,984.99 mi (6,413.22 km) |
| Williamstown to Solsona | 3,861.50 mi (6,214.49 km) |
| Williamstown to Son Servera | 4,020.79 mi (6,470.84 km) |
| Williamstown to Sonseca | 3,668.95 mi (5,904.61 km) |
| Williamstown to Sopelana | 3,613.91 mi (5,816.02 km) |
| Williamstown to Soria | 3,681.55 mi (5,924.88 km) |
| Williamstown to Suances | 3,562.75 mi (5,733.69 km) |
