| Sidney to Sestu | 4,692.33 mi (7,551.58 km) |
| Sidney to Settimo Torinese | 4,414.11 mi (7,103.83 km) |
| Sidney to Seveso | 4,451.67 mi (7,164.27 km) |
| Sidney to Sezze | 4,775.16 mi (7,684.87 km) |
| Sidney to Siano | 4,871.91 mi (7,840.58 km) |
| Sidney to Siena | 4,630.43 mi (7,451.95 km) |
| Sidney to Signa | 4,602.75 mi (7,407.41 km) |
| Sidney to Silea | 4,578.83 mi (7,368.92 km) |
| Sidney to Silvi Paese | 4,776.10 mi (7,686.39 km) |
| Sidney to Sinalunga | 4,651.06 mi (7,485.16 km) |
| Sidney to Siniscola | 4,668.59 mi (7,513.37 km) |
| Sidney to Sinnai | 4,697.09 mi (7,559.24 km) |
| Sidney to Siracusa | 5,054.41 mi (8,134.29 km) |
| Sidney to Solaro | 4,450.54 mi (7,162.45 km) |
| Sidney to Soliera | 4,558.72 mi (7,336.55 km) |
