| Boone to Spello | 4,768.31 mi (7,673.86 km) |
| Boone to Spilamberto | 4,643.62 mi (7,473.19 km) |
| Boone to Spilimbergo | 4,668.88 mi (7,513.84 km) |
| Boone to Spinea | 4,660.06 mi (7,499.64 km) |
| Boone to Spoleto | 4,777.05 mi (7,687.92 km) |
| Boone to Spoltore | 4,851.17 mi (7,807.21 km) |
| Boone to Spresiano | 4,654.01 mi (7,489.90 km) |
| Boone to Squinzano | 5,097.02 mi (8,202.87 km) |
| Boone to Statte | 5,054.80 mi (8,134.91 km) |
| Boone to Stezzano | 4,548.35 mi (7,319.86 km) |
| Boone to Strada | 4,688.74 mi (7,545.80 km) |
| Boone to Stradella | 4,551.54 mi (7,324.99 km) |
| Boone to Striano | 4,929.57 mi (7,933.37 km) |
| Boone to Subiaco | 4,824.37 mi (7,764.07 km) |
| Boone to Sulmona | 4,856.53 mi (7,815.82 km) |
