| Watertown to Sestu | 4,198.91 mi (6,757.49 km) |
| Watertown to Settimo Torinese | 3,922.32 mi (6,312.36 km) |
| Watertown to Seveso | 3,960.72 mi (6,374.16 km) |
| Watertown to Sezze | 4,282.74 mi (6,892.40 km) |
| Watertown to Siano | 4,379.59 mi (7,048.27 km) |
| Watertown to Siena | 4,138.52 mi (6,660.31 km) |
| Watertown to Signa | 4,111.08 mi (6,616.14 km) |
| Watertown to Silea | 4,089.20 mi (6,580.93 km) |
| Watertown to Silvi Paese | 4,284.63 mi (6,895.44 km) |
| Watertown to Sinalunga | 4,159.22 mi (6,693.62 km) |
| Watertown to Siniscola | 4,175.27 mi (6,719.45 km) |
| Watertown to Sinnai | 4,203.67 mi (6,765.16 km) |
| Watertown to Siracusa | 4,561.05 mi (7,340.31 km) |
| Watertown to Solaro | 3,959.54 mi (6,372.27 km) |
| Watertown to Soliera | 4,067.69 mi (6,546.31 km) |
