| Mastic Beach to Sestu | 4,164.46 mi (6,702.05 km) |
| Mastic Beach to Settimo Torinese | 3,912.82 mi (6,297.08 km) |
| Mastic Beach to Seveso | 3,956.38 mi (6,367.18 km) |
| Mastic Beach to Sezze | 4,267.07 mi (6,867.18 km) |
| Mastic Beach to Siano | 4,364.45 mi (7,023.90 km) |
| Mastic Beach to Siena | 4,127.46 mi (6,642.50 km) |
| Mastic Beach to Signa | 4,101.71 mi (6,601.06 km) |
| Mastic Beach to Silea | 4,091.08 mi (6,583.95 km) |
| Mastic Beach to Silvi Paese | 4,275.96 mi (6,881.49 km) |
| Mastic Beach to Sinalunga | 4,148.52 mi (6,676.39 km) |
| Mastic Beach to Siniscola | 4,147.99 mi (6,675.55 km) |
| Mastic Beach to Sinnai | 4,169.48 mi (6,710.14 km) |
| Mastic Beach to Siracusa | 4,531.32 mi (7,292.46 km) |
| Mastic Beach to Solaro | 3,954.96 mi (6,364.90 km) |
| Mastic Beach to Soliera | 4,062.48 mi (6,537.93 km) |
