| Barstow to Spello | 6,193.61 mi (9,967.65 km) |
| Barstow to Spilamberto | 6,058.75 mi (9,750.61 km) |
| Barstow to Spilimbergo | 6,031.84 mi (9,707.31 km) |
| Barstow to Spinea | 6,043.72 mi (9,726.42 km) |
| Barstow to Spoleto | 6,206.49 mi (9,988.38 km) |
| Barstow to Spoltore | 6,268.94 mi (10,088.88 km) |
| Barstow to Spresiano | 6,030.99 mi (9,705.94 km) |
| Barstow to Squinzano | 6,502.07 mi (10,464.08 km) |
| Barstow to Statte | 6,468.48 mi (10,410.01 km) |
| Barstow to Stezzano | 5,956.83 mi (9,586.59 km) |
| Barstow to Strada | 6,118.51 mi (9,846.80 km) |
| Barstow to Stradella | 5,974.95 mi (9,615.75 km) |
| Barstow to Striano | 6,371.70 mi (10,254.27 km) |
| Barstow to Subiaco | 6,264.02 mi (10,080.97 km) |
| Barstow to Sulmona | 6,284.27 mi (10,113.56 km) |
