| Letchworth to Saarijarvi | 1,191.67 mi (1,917.81 km) |
| Letchworth to Salo | 1,060.79 mi (1,707.18 km) |
| Letchworth to Sastamala | 1,081.53 mi (1,740.55 km) |
| Letchworth to Savonlinna | 1,276.78 mi (2,054.79 km) |
| Letchworth to Seinajoki | 1,127.48 mi (1,814.51 km) |
| Letchworth to Siilinjarvi | 1,270.95 mi (2,045.40 km) |
| Letchworth to Sipoo | 1,128.95 mi (1,816.87 km) |
| Letchworth to Sippola | 1,192.59 mi (1,919.29 km) |
| Letchworth to Sodankyla | 1,395.80 mi (2,246.33 km) |
| Letchworth to Somero | 1,079.70 mi (1,737.61 km) |
| Letchworth to Sotkamo | 1,321.96 mi (2,127.48 km) |
| Letchworth to Tampere | 1,111.58 mi (1,788.91 km) |
| Letchworth to Tornio | 1,277.75 mi (2,056.34 km) |
| Letchworth to Turku | 1,035.71 mi (1,666.82 km) |
| Letchworth to Tuusula | 1,123.14 mi (1,807.53 km) |
