| Potomac to Suhut | 5,393.19 mi (8,679.49 km) |
| Potomac to Sulakyurt | 5,445.46 mi (8,763.63 km) |
| Potomac to Sultanbeyli | 5,232.24 mi (8,420.48 km) |
| Potomac to Sultandagi | 5,421.12 mi (8,724.45 km) |
| Potomac to Sultanhani | 5,527.60 mi (8,895.82 km) |
| Potomac to Sultanhisar | 5,322.95 mi (8,566.47 km) |
| Potomac to Suluova | 5,488.31 mi (8,832.58 km) |
| Potomac to Sumbas | 5,664.58 mi (9,116.25 km) |
| Potomac to Sungurlu | 5,470.99 mi (8,804.71 km) |
| Potomac to Surmene | 5,650.67 mi (9,093.87 km) |
| Potomac to Suruc | 5,781.14 mi (9,303.85 km) |
| Potomac to Susehri | 5,612.74 mi (9,032.84 km) |
| Potomac to Susurluk | 5,233.99 mi (8,423.29 km) |
| Potomac to Susuz | 5,765.86 mi (9,279.25 km) |
| Potomac to Sutculer | 5,458.12 mi (8,783.99 km) |
