| Potomac to Sentrupert | 4,453.77 mi (7,167.65 km) |
| Potomac to Sevnica | 4,461.48 mi (7,180.06 km) |
| Potomac to Sezana | 4,412.69 mi (7,101.53 km) |
| Potomac to Skocjan | 4,464.57 mi (7,185.04 km) |
| Potomac to Skofja Loka | 4,414.59 mi (7,104.60 km) |
| Potomac to Skofljica | 4,432.29 mi (7,133.08 km) |
| Potomac to Slovenj Gradec | 4,434.65 mi (7,136.89 km) |
| Potomac to Slovenska Bistrica | 4,459.16 mi (7,176.33 km) |
| Potomac to Slovenske Konjice | 4,454.78 mi (7,169.27 km) |
| Potomac to Smarje | 4,462.56 mi (7,181.80 km) |
| Potomac to Smarjeske Toplice | 4,463.26 mi (7,182.92 km) |
| Potomac to Smartno | 4,441.37 mi (7,147.69 km) |
| Potomac to Smartno | 4,439.03 mi (7,143.92 km) |
| Potomac to Sodrazica | 4,442.55 mi (7,149.59 km) |
| Potomac to Solcava | 4,421.85 mi (7,116.29 km) |
