| Letchworth to Sentrupert | 806.70 mi (1,298.26 km) |
| Letchworth to Sevnica | 813.68 mi (1,309.49 km) |
| Letchworth to Sezana | 771.95 mi (1,242.33 km) |
| Letchworth to Skocjan | 817.37 mi (1,315.43 km) |
| Letchworth to Skofja Loka | 768.59 mi (1,236.92 km) |
| Letchworth to Skofljica | 786.68 mi (1,266.03 km) |
| Letchworth to Slovenj Gradec | 784.97 mi (1,263.29 km) |
| Letchworth to Slovenska Bistrica | 809.10 mi (1,302.13 km) |
| Letchworth to Slovenske Konjice | 805.17 mi (1,295.80 km) |
| Letchworth to Smarje | 813.24 mi (1,308.78 km) |
| Letchworth to Smarjeske Toplice | 816.51 mi (1,314.04 km) |
| Letchworth to Smartno | 794.56 mi (1,278.72 km) |
| Letchworth to Smartno | 790.22 mi (1,271.73 km) |
| Letchworth to Sodrazica | 798.31 mi (1,284.76 km) |
| Letchworth to Solcava | 773.34 mi (1,244.58 km) |
