| Letchworth to Santa Venerina | 1,236.46 mi (1,989.88 km) |
| Letchworth to Santeramo in Colle | 1,114.06 mi (1,792.90 km) |
| Letchworth to Santo Stefano di Magra | 713.49 mi (1,148.25 km) |
| Letchworth to Santo Stino di Livenza | 726.83 mi (1,169.71 km) |
| Letchworth to Sarezzo | 644.11 mi (1,036.60 km) |
| Letchworth to Sarno | 1,042.54 mi (1,677.81 km) |
| Letchworth to Saronno | 607.78 mi (978.12 km) |
| Letchworth to Sarzana | 717.53 mi (1,154.75 km) |
| Letchworth to Sassari | 881.71 mi (1,418.97 km) |
| Letchworth to Sasso Marconi | 742.51 mi (1,194.95 km) |
| Letchworth to Sassuolo | 719.60 mi (1,158.09 km) |
| Letchworth to Sava | 1,162.31 mi (1,870.56 km) |
| Letchworth to Saviano | 1,033.88 mi (1,663.87 km) |
| Letchworth to Savigliano | 621.24 mi (999.79 km) |
| Letchworth to Savignano sul Panaro | 731.15 mi (1,176.67 km) |
