| Webster Groves to Steiner Ranch (Texas) | 711.56 mi (1,145.15 km) |
| Webster Groves to Stephenville (Texas) | 624.08 mi (1,004.36 km) |
| Webster Groves to Sterling (Colorado) | 697.05 mi (1,121.80 km) |
| Webster Groves to Sterling (Illinois) | 224.70 mi (361.62 km) |
| Webster Groves to Sterling (Virginia) | 697.34 mi (1,122.26 km) |
| Webster Groves to Sterling Heights (Michigan) | 472.84 mi (760.97 km) |
| Webster Groves to Steubenville (Ohio) | 531.55 mi (855.44 km) |
| Webster Groves to Stevens Point (Wisconsin) | 412.33 mi (663.59 km) |
| Webster Groves to Stevenson Ranch (California) | 1,588.46 mi (2,556.37 km) |
| Webster Groves to Stillwater (Minnesota) | 464.85 mi (748.11 km) |
| Webster Groves to Stillwater (Oklahoma) | 406.01 mi (653.42 km) |
| Webster Groves to Stockbridge (Georgia) | 488.98 mi (786.93 km) |
| Webster Groves to Stockton (California) | 1,671.51 mi (2,690.04 km) |
| Webster Groves to Stone Ridge (Virginia) | 689.42 mi (1,109.51 km) |
| Webster Groves to Stonecrest (Georgia) | 484.62 mi (779.93 km) |
