| Potomac to Sonneberg | 4,150.73 mi (6,679.95 km) |
| Potomac to Sonsbeck | 3,925.11 mi (6,316.86 km) |
| Potomac to Sonthofen | 4,203.15 mi (6,764.32 km) |
| Potomac to Spaichingen | 4,121.77 mi (6,633.36 km) |
| Potomac to Spelle | 3,947.57 mi (6,353.00 km) |
| Potomac to Spenge | 3,993.44 mi (6,426.83 km) |
| Potomac to Speyer | 4,071.94 mi (6,553.16 km) |
| Potomac to Spiesen-Elversberg | 4,018.98 mi (6,467.92 km) |
| Potomac to Spremberg | 4,236.93 mi (6,818.68 km) |
| Potomac to Springe | 4,032.38 mi (6,489.49 km) |
| Potomac to Sprockhovel | 3,966.23 mi (6,383.03 km) |
| Potomac to Stade | 3,990.81 mi (6,422.58 km) |
| Potomac to Stadtallendorf | 4,051.25 mi (6,519.85 km) |
| Potomac to Stadthagen | 4,016.09 mi (6,463.27 km) |
| Potomac to Stadtlohn | 3,936.07 mi (6,334.50 km) |
