| Loudoun Valley Estates to Sestu | 4,440.74 mi (7,146.68 km) |
| Loudoun Valley Estates to Settimo Torinese | 4,186.55 mi (6,737.61 km) |
| Loudoun Valley Estates to Seveso | 4,229.34 mi (6,806.46 km) |
| Loudoun Valley Estates to Sezze | 4,541.75 mi (7,309.23 km) |
| Loudoun Valley Estates to Siano | 4,639.10 mi (7,465.90 km) |
| Loudoun Valley Estates to Siena | 4,401.49 mi (7,083.52 km) |
| Loudoun Valley Estates to Signa | 4,375.50 mi (7,041.68 km) |
| Loudoun Valley Estates to Silea | 4,363.02 mi (7,021.60 km) |
| Loudoun Valley Estates to Silvi Paese | 4,549.71 mi (7,322.05 km) |
| Loudoun Valley Estates to Sinalunga | 4,422.51 mi (7,117.35 km) |
| Loudoun Valley Estates to Siniscola | 4,423.80 mi (7,119.41 km) |
| Loudoun Valley Estates to Sinnai | 4,445.75 mi (7,154.75 km) |
| Loudoun Valley Estates to Siracusa | 4,807.38 mi (7,736.73 km) |
| Loudoun Valley Estates to Solaro | 4,227.96 mi (6,804.24 km) |
| Loudoun Valley Estates to Soliera | 4,335.62 mi (6,977.51 km) |
