| Barstow to Southern Pines (North Carolina) | 2,116.90 mi (3,406.83 km) |
| Barstow to Southfield (Michigan) | 1,883.03 mi (3,030.45 km) |
| Barstow to Southgate (Michigan) | 1,884.32 mi (3,032.52 km) |
| Barstow to Southlake (Texas) | 1,146.62 mi (1,845.30 km) |
| Barstow to Spanaway (Washington) | 889.88 mi (1,432.12 km) |
| Barstow to Spanish Fork (Utah) | 467.92 mi (753.04 km) |
| Barstow to Spanish Lake (Missouri) | 1,503.27 mi (2,419.28 km) |
| Barstow to Spanish Springs (Nevada) | 361.00 mi (580.98 km) |
| Barstow to Sparks (Nevada) | 356.82 mi (574.25 km) |
| Barstow to Spartanburg (South Carolina) | 1,979.69 mi (3,186.01 km) |
| Barstow to Spearfish (South Dakota) | 965.84 mi (1,554.36 km) |
| Barstow to Speedway (Indiana) | 1,717.13 mi (2,763.45 km) |
| Barstow to Spencer (Iowa) | 1,302.02 mi (2,095.40 km) |
| Barstow to Spokane (Washington) | 884.69 mi (1,423.77 km) |
| Barstow to Spokane Valley (Washington) | 884.21 mi (1,422.99 km) |
