| Caernarfon to Saarijarvi | 1,252.47 mi (2,015.65 km) |
| Caernarfon to Salo | 1,140.71 mi (1,835.80 km) |
| Caernarfon to Sastamala | 1,151.29 mi (1,852.83 km) |
| Caernarfon to Savonlinna | 1,350.55 mi (2,173.49 km) |
| Caernarfon to Seinajoki | 1,182.64 mi (1,903.27 km) |
| Caernarfon to Siilinjarvi | 1,332.26 mi (2,144.06 km) |
| Caernarfon to Sipoo | 1,212.17 mi (1,950.79 km) |
| Caernarfon to Sippola | 1,274.49 mi (2,051.09 km) |
| Caernarfon to Sodankyla | 1,418.18 mi (2,282.34 km) |
| Caernarfon to Somero | 1,157.76 mi (1,863.23 km) |
| Caernarfon to Sotkamo | 1,374.97 mi (2,212.80 km) |
| Caernarfon to Tampere | 1,181.37 mi (1,901.23 km) |
| Caernarfon to Tornio | 1,307.90 mi (2,104.86 km) |
| Caernarfon to Turku | 1,113.46 mi (1,791.94 km) |
| Caernarfon to Tuusula | 1,205.51 mi (1,940.07 km) |
