| Southborough to Saarijarvi | 1,220.67 mi (1,964.48 km) |
| Southborough to Salo | 1,084.32 mi (1,745.05 km) |
| Southborough to Sastamala | 1,108.27 mi (1,783.58 km) |
| Southborough to Savonlinna | 1,301.36 mi (2,094.33 km) |
| Southborough to Seinajoki | 1,158.45 mi (1,864.34 km) |
| Southborough to Siilinjarvi | 1,299.47 mi (2,091.30 km) |
| Southborough to Sipoo | 1,151.01 mi (1,852.37 km) |
| Southborough to Sippola | 1,214.80 mi (1,955.04 km) |
| Southborough to Sodankyla | 1,434.62 mi (2,308.79 km) |
| Southborough to Somero | 1,103.75 mi (1,776.32 km) |
| Southborough to Sotkamo | 1,352.76 mi (2,177.06 km) |
| Southborough to Tampere | 1,138.16 mi (1,831.68 km) |
| Southborough to Tornio | 1,314.97 mi (2,116.24 km) |
| Southborough to Turku | 1,060.11 mi (1,706.08 km) |
| Southborough to Tuusula | 1,145.52 mi (1,843.53 km) |
