| Potomac to Stanmore | 3,656.20 mi (5,884.09 km) |
| Potomac to Stannington | 3,570.41 mi (5,746.01 km) |
| Potomac to Stansted Mountfitchet | 3,670.82 mi (5,907.61 km) |
| Potomac to Stanwell | 3,653.31 mi (5,879.43 km) |
| Potomac to Stapleford | 3,590.03 mi (5,777.60 km) |
| Potomac to Staveley | 3,580.31 mi (5,761.95 km) |
| Potomac to Stepney | 3,669.37 mi (5,905.28 km) |
| Potomac to Stevenage | 3,654.57 mi (5,881.45 km) |
| Potomac to Stevenston | 3,406.74 mi (5,482.63 km) |
| Potomac to Stirling | 3,430.82 mi (5,521.37 km) |
| Potomac to Stockport | 3,545.90 mi (5,706.57 km) |
| Potomac to Stocksbridge | 3,566.76 mi (5,740.15 km) |
| Potomac to Stockton-on-Tees | 3,556.52 mi (5,723.66 km) |
| Potomac to Stoke Gifford | 3,566.98 mi (5,740.49 km) |
| Potomac to Stoke-on-Trent | 3,552.36 mi (5,716.98 km) |
