| Webster Groves to Somerset (New Jersey) | 853.80 mi (1,374.06 km) |
| Webster Groves to Somersworth (New Hampshire) | 1,063.47 mi (1,711.49 km) |
| Webster Groves to Somerton (Arizona) | 1,424.07 mi (2,291.83 km) |
| Webster Groves to Somerville (Massachusetts) | 1,042.76 mi (1,678.16 km) |
| Webster Groves to Somerville (New Jersey) | 848.43 mi (1,365.42 km) |
| Webster Groves to Sonoma (California) | 1,728.69 mi (2,782.06 km) |
| Webster Groves to Soquel (California) | 1,720.03 mi (2,768.12 km) |
| Webster Groves to South Bend (Indiana) | 303.49 mi (488.41 km) |
| Webster Groves to South Bradenton (Florida) | 889.98 mi (1,432.29 km) |
| Webster Groves to South Burlington (Vermont) | 972.36 mi (1,564.86 km) |
| Webster Groves to South Charleston (West Virginia) | 467.49 mi (752.36 km) |
| Webster Groves to South Daytona (Florida) | 842.37 mi (1,355.66 km) |
| Webster Groves to South El Monte (California) | 1,567.04 mi (2,521.91 km) |
| Webster Groves to South Elgin (Illinois) | 258.60 mi (416.18 km) |
| Webster Groves to South Euclid (Ohio) | 508.85 mi (818.91 km) |
