| Letterkenny to Saarijarvi | 1,276.73 mi (2,054.70 km) |
| Letterkenny to Salo | 1,187.05 mi (1,910.37 km) |
| Letterkenny to Sastamala | 1,187.06 mi (1,910.39 km) |
| Letterkenny to Savonlinna | 1,386.05 mi (2,230.63 km) |
| Letterkenny to Seinajoki | 1,202.86 mi (1,935.81 km) |
| Letterkenny to Siilinjarvi | 1,355.36 mi (2,181.24 km) |
| Letterkenny to Sipoo | 1,260.18 mi (2,028.06 km) |
| Letterkenny to Sippola | 1,319.83 mi (2,124.06 km) |
| Letterkenny to Sodankyla | 1,400.27 mi (2,253.52 km) |
| Letterkenny to Somero | 1,201.77 mi (1,934.06 km) |
| Letterkenny to Sotkamo | 1,388.81 mi (2,235.07 km) |
| Letterkenny to Tampere | 1,216.41 mi (1,957.63 km) |
| Letterkenny to Tornio | 1,299.98 mi (2,092.12 km) |
| Letterkenny to Turku | 1,158.29 mi (1,864.09 km) |
| Letterkenny to Tuusula | 1,252.80 mi (2,016.18 km) |
