| Potomac to Sycow | 4,371.83 mi (7,035.78 km) |
| Potomac to Szamotuly | 4,285.89 mi (6,897.48 km) |
| Potomac to Szczecin | 4,184.25 mi (6,733.90 km) |
| Potomac to Szczecinek | 4,252.86 mi (6,844.31 km) |
| Potomac to Szczytno | 4,411.11 mi (7,098.99 km) |
| Potomac to Szprotawa | 4,280.82 mi (6,889.31 km) |
| Potomac to Sztum | 4,329.96 mi (6,968.39 km) |
| Potomac to Szubin | 4,314.64 mi (6,943.75 km) |
| Potomac to Szydlowiec | 4,490.49 mi (7,226.75 km) |
| Potomac to Tarnobrzeg | 4,545.17 mi (7,314.75 km) |
| Potomac to Tarnow | 4,540.56 mi (7,307.33 km) |
| Potomac to Tarnowskie Gory | 4,444.78 mi (7,153.19 km) |
| Potomac to Tczew | 4,315.96 mi (6,945.87 km) |
| Potomac to Tomaszow Lubelski | 4,613.92 mi (7,425.38 km) |
| Potomac to Tomaszow Mazowiecki | 4,449.62 mi (7,160.97 km) |
