| Williston to Sestu | 5,125.11 mi (8,248.07 km) |
| Williston to Settimo Torinese | 4,775.16 mi (7,684.87 km) |
| Williston to Seveso | 4,792.65 mi (7,713.02 km) |
| Williston to Sezze | 5,138.50 mi (8,269.61 km) |
| Williston to Siano | 5,228.44 mi (8,414.37 km) |
| Williston to Siena | 4,985.13 mi (8,022.79 km) |
| Williston to Signa | 4,952.97 mi (7,971.04 km) |
| Williston to Silea | 4,890.63 mi (7,870.72 km) |
| Williston to Silvi Paese | 5,114.57 mi (8,231.10 km) |
| Williston to Sinalunga | 5,003.37 mi (8,052.15 km) |
| Williston to Siniscola | 5,077.80 mi (8,171.94 km) |
| Williston to Sinnai | 5,128.74 mi (8,253.91 km) |
| Williston to Siracusa | 5,453.91 mi (8,777.22 km) |
| Williston to Solaro | 4,792.43 mi (7,712.67 km) |
| Williston to Soliera | 4,896.72 mi (7,880.51 km) |
