| Webster Groves to Suffolk (Virginia) | 760.89 mi (1,224.53 km) |
| Webster Groves to Sugar Hill (Georgia) | 467.34 mi (752.12 km) |
| Webster Groves to Sugar Land (Texas) | 690.62 mi (1,111.44 km) |
| Webster Groves to Sugarland Run (Virginia) | 698.83 mi (1,124.66 km) |
| Webster Groves to Sugarmill Woods (Florida) | 816.41 mi (1,313.88 km) |
| Webster Groves to Suisun City (California) | 1,705.23 mi (2,744.30 km) |
| Webster Groves to Suitland (Maryland) | 723.68 mi (1,164.64 km) |
| Webster Groves to Sulphur (Louisiana) | 602.20 mi (969.15 km) |
| Webster Groves to Sulphur Springs (Texas) | 477.49 mi (768.44 km) |
| Webster Groves to Summerfield (Maryland) | 726.44 mi (1,169.09 km) |
| Webster Groves to Summerfield (North Carolina) | 596.79 mi (960.43 km) |
| Webster Groves to Summerlin South (Nevada) | 1,378.03 mi (2,217.73 km) |
| Webster Groves to Summerville (South Carolina) | 687.82 mi (1,106.94 km) |
| Webster Groves to Summit (Illinois) | 258.60 mi (416.18 km) |
| Webster Groves to Summit (New Jersey) | 861.98 mi (1,387.23 km) |
