| Potomac to Schaffhausen | 4,128.88 mi (6,644.79 km) |
| Potomac to Schlieren | 4,130.38 mi (6,647.21 km) |
| Potomac to Schubelbach | 4,157.35 mi (6,690.61 km) |
| Potomac to Schwyz | 4,150.58 mi (6,679.71 km) |
| Potomac to Sierre | 4,125.25 mi (6,638.95 km) |
| Potomac to Sion | 4,120.16 mi (6,630.76 km) |
| Potomac to Solothurn | 4,097.38 mi (6,594.09 km) |
| Potomac to Spiez | 4,119.21 mi (6,629.23 km) |
| Potomac to Spreitenbach | 4,126.38 mi (6,640.77 km) |
| Potomac to Stafa | 4,147.05 mi (6,674.03 km) |
| Potomac to Stans | 4,139.99 mi (6,662.67 km) |
| Potomac to Steffisburg | 4,115.25 mi (6,622.85 km) |
| Potomac to Stegen | 4,141.45 mi (6,665.02 km) |
| Potomac to Steinhaus | 4,138.13 mi (6,659.67 km) |
| Potomac to Suhr | 4,115.65 mi (6,623.50 km) |
