| Portsmouth to Saarijarvi | 1,277.12 mi (2,055.33 km) |
| Portsmouth to Salo | 1,143.34 mi (1,840.02 km) |
| Portsmouth to Sastamala | 1,165.84 mi (1,876.24 km) |
| Portsmouth to Savonlinna | 1,359.99 mi (2,188.69 km) |
| Portsmouth to Seinajoki | 1,213.77 mi (1,953.38 km) |
| Portsmouth to Siilinjarvi | 1,356.20 mi (2,182.59 km) |
| Portsmouth to Sipoo | 1,210.63 mi (1,948.32 km) |
| Portsmouth to Sippola | 1,274.39 mi (2,050.93 km) |
| Portsmouth to Sodankyla | 1,484.48 mi (2,389.03 km) |
| Portsmouth to Somero | 1,162.55 mi (1,870.95 km) |
| Portsmouth to Sotkamo | 1,408.23 mi (2,266.32 km) |
| Portsmouth to Tampere | 1,195.82 mi (1,924.48 km) |
| Portsmouth to Tornio | 1,366.10 mi (2,198.52 km) |
| Portsmouth to Turku | 1,118.75 mi (1,800.45 km) |
| Portsmouth to Tuusula | 1,205.02 mi (1,939.29 km) |
