| Ashburn to Sestu | 4,437.38 mi (7,141.27 km) |
| Ashburn to Settimo Torinese | 4,183.02 mi (6,731.92 km) |
| Ashburn to Seveso | 4,225.77 mi (6,800.72 km) |
| Ashburn to Sezze | 4,538.25 mi (7,303.61 km) |
| Ashburn to Siano | 4,635.60 mi (7,460.28 km) |
| Ashburn to Siena | 4,397.97 mi (7,077.85 km) |
| Ashburn to Signa | 4,371.96 mi (7,035.99 km) |
| Ashburn to Silea | 4,359.41 mi (7,015.80 km) |
| Ashburn to Silvi Paese | 4,546.17 mi (7,316.36 km) |
| Ashburn to Sinalunga | 4,418.99 mi (7,111.67 km) |
| Ashburn to Siniscola | 4,420.38 mi (7,113.92 km) |
| Ashburn to Sinnai | 4,442.39 mi (7,149.33 km) |
| Ashburn to Siracusa | 4,803.99 mi (7,731.28 km) |
| Ashburn to Solaro | 4,224.39 mi (6,798.50 km) |
| Ashburn to Soliera | 4,332.06 mi (6,971.78 km) |
