| Poplar Bluff to Spello | 5,113.79 mi (8,229.86 km) |
| Poplar Bluff to Spilamberto | 4,984.87 mi (8,022.37 km) |
| Poplar Bluff to Spilimbergo | 4,996.63 mi (8,041.30 km) |
| Poplar Bluff to Spinea | 4,993.17 mi (8,035.74 km) |
| Poplar Bluff to Spoleto | 5,123.73 mi (8,245.84 km) |
| Poplar Bluff to Spoltore | 5,195.70 mi (8,361.67 km) |
| Poplar Bluff to Spresiano | 4,985.27 mi (8,023.02 km) |
| Poplar Bluff to Squinzano | 5,441.25 mi (8,756.84 km) |
| Poplar Bluff to Statte | 5,400.73 mi (8,691.64 km) |
| Poplar Bluff to Stezzano | 4,886.60 mi (7,864.23 km) |
| Poplar Bluff to Strada | 5,034.42 mi (8,102.12 km) |
| Poplar Bluff to Stradella | 4,893.82 mi (7,875.83 km) |
| Poplar Bluff to Striano | 5,281.37 mi (8,499.54 km) |
| Poplar Bluff to Subiaco | 5,174.29 mi (8,327.21 km) |
| Poplar Bluff to Sulmona | 5,203.72 mi (8,374.58 km) |
