| Watertown Town to Saarijarvi | 3,861.04 mi (6,213.75 km) |
| Watertown Town to Salo | 3,872.55 mi (6,232.26 km) |
| Watertown Town to Sastamala | 3,836.09 mi (6,173.58 km) |
| Watertown Town to Savonlinna | 3,990.99 mi (6,422.88 km) |
| Watertown Town to Seinajoki | 3,790.00 mi (6,099.42 km) |
| Watertown Town to Siilinjarvi | 3,915.49 mi (6,301.37 km) |
| Watertown Town to Sipoo | 3,937.52 mi (6,336.83 km) |
| Watertown Town to Sippola | 3,976.34 mi (6,399.30 km) |
| Watertown Town to Sodankyla | 3,749.88 mi (6,034.84 km) |
| Watertown Town to Somero | 3,876.51 mi (6,238.64 km) |
| Watertown Town to Sotkamo | 3,899.38 mi (6,275.45 km) |
| Watertown Town to Tampere | 3,856.31 mi (6,206.13 km) |
| Watertown Town to Tornio | 3,735.52 mi (6,011.74 km) |
| Watertown Town to Turku | 3,844.46 mi (6,187.07 km) |
| Watertown Town to Tuusula | 3,928.99 mi (6,323.09 km) |
