| Webster Groves to Spello | 5,027.16 mi (8,090.43 km) |
| Webster Groves to Spilamberto | 4,897.31 mi (7,881.46 km) |
| Webster Groves to Spilimbergo | 4,905.70 mi (7,894.96 km) |
| Webster Groves to Spinea | 4,903.55 mi (7,891.51 km) |
| Webster Groves to Spoleto | 5,037.40 mi (8,106.90 km) |
| Webster Groves to Spoltore | 5,108.70 mi (8,221.65 km) |
| Webster Groves to Spresiano | 4,895.21 mi (7,878.08 km) |
| Webster Groves to Squinzano | 5,353.84 mi (8,616.17 km) |
| Webster Groves to Statte | 5,313.82 mi (8,551.77 km) |
| Webster Groves to Stezzano | 4,798.42 mi (7,722.31 km) |
| Webster Groves to Strada | 4,947.95 mi (7,962.96 km) |
| Webster Groves to Stradella | 4,806.66 mi (7,735.57 km) |
| Webster Groves to Striano | 5,196.20 mi (8,362.48 km) |
| Webster Groves to Subiaco | 5,088.75 mi (8,189.56 km) |
| Webster Groves to Sulmona | 5,117.41 mi (8,235.68 km) |
