| Webster Groves to San Luis (Arizona) | 1,427.65 mi (2,297.57 km) |
| Webster Groves to San Luis Obispo (California) | 1,682.29 mi (2,707.38 km) |
| Webster Groves to San Marcos (California) | 1,542.28 mi (2,482.06 km) |
| Webster Groves to San Marcos (Texas) | 740.97 mi (1,192.48 km) |
| Webster Groves to San Marino (California) | 1,568.85 mi (2,524.82 km) |
| Webster Groves to San Mateo (California) | 1,731.02 mi (2,785.80 km) |
| Webster Groves to San Pablo (California) | 1,726.80 mi (2,779.02 km) |
| Webster Groves to San Rafael (California) | 1,736.01 mi (2,793.83 km) |
| Webster Groves to San Ramon (California) | 1,707.89 mi (2,748.59 km) |
| Webster Groves to San Tan Valley (Arizona) | 1,241.35 mi (1,997.77 km) |
| Webster Groves to Sand Springs (Oklahoma) | 359.38 mi (578.37 km) |
| Webster Groves to Sandusky (Ohio) | 450.33 mi (724.74 km) |
| Webster Groves to Sandy (Oregon) | 1,692.71 mi (2,724.15 km) |
| Webster Groves to Sandy (Utah) | 1,150.03 mi (1,850.80 km) |
| Webster Groves to Sandy Springs (Georgia) | 462.79 mi (744.79 km) |
