| Hartford to Sestu | 4,125.20 mi (6,638.87 km) |
| Hartford to Settimo Torinese | 3,868.29 mi (6,225.41 km) |
| Hartford to Seveso | 3,910.86 mi (6,293.91 km) |
| Hartford to Sezze | 4,223.95 mi (6,797.79 km) |
| Hartford to Siano | 4,321.27 mi (6,954.41 km) |
| Hartford to Siena | 4,083.34 mi (6,571.51 km) |
| Hartford to Signa | 4,057.25 mi (6,529.51 km) |
| Hartford to Silea | 4,044.42 mi (6,508.87 km) |
| Hartford to Silvi Paese | 4,231.44 mi (6,809.85 km) |
| Hartford to Sinalunga | 4,104.34 mi (6,605.30 km) |
| Hartford to Siniscola | 4,107.21 mi (6,609.91 km) |
| Hartford to Sinnai | 4,130.17 mi (6,646.87 km) |
| Hartford to Siracusa | 4,491.24 mi (7,227.95 km) |
| Hartford to Solaro | 3,909.49 mi (6,291.71 km) |
| Hartford to Soliera | 4,017.18 mi (6,465.03 km) |
