| Delaware to Sestu | 4,644.32 mi (7,474.32 km) |
| Delaware to Settimo Torinese | 4,368.93 mi (7,031.11 km) |
| Delaware to Seveso | 4,407.14 mi (7,092.61 km) |
| Delaware to Sezze | 4,729.37 mi (7,611.19 km) |
| Delaware to Siano | 4,826.23 mi (7,767.07 km) |
| Delaware to Siena | 4,585.15 mi (7,379.08 km) |
| Delaware to Signa | 4,557.67 mi (7,334.86 km) |
| Delaware to Silea | 4,535.17 mi (7,298.65 km) |
| Delaware to Silvi Paese | 4,731.18 mi (7,614.11 km) |
| Delaware to Sinalunga | 4,605.84 mi (7,412.38 km) |
| Delaware to Siniscola | 4,621.39 mi (7,437.40 km) |
| Delaware to Sinnai | 4,649.12 mi (7,482.03 km) |
| Delaware to Siracusa | 5,007.05 mi (8,058.07 km) |
| Delaware to Solaro | 4,405.98 mi (7,090.74 km) |
| Delaware to Soliera | 4,514.14 mi (7,264.80 km) |
