| Boise to Shoreview (Minnesota) | 1,141.90 mi (1,837.71 km) |
| Boise to Shorewood (Illinois) | 1,426.26 mi (2,295.35 km) |
| Boise to Shorewood (Wisconsin) | 1,417.70 mi (2,281.56 km) |
| Boise to Short Hills (New Jersey) | 2,132.10 mi (3,431.28 km) |
| Boise to Short Pump (Virginia) | 2,046.77 mi (3,293.96 km) |
| Boise to Show Low (Arizona) | 725.16 mi (1,167.04 km) |
| Boise to Shreveport (Louisiana) | 1,435.99 mi (2,311.00 km) |
| Boise to Sicklerville (New Jersey) | 2,122.81 mi (3,416.33 km) |
| Boise to Sidney (Ohio) | 1,653.16 mi (2,660.51 km) |
| Boise to Sierra Madre (California) | 658.93 mi (1,060.45 km) |
| Boise to Sierra Vista (Arizona) | 891.93 mi (1,435.43 km) |
| Boise to Sierra Vista Southeast (Arizona) | 901.09 mi (1,450.16 km) |
| Boise to Signal Hill (California) | 684.90 mi (1,102.24 km) |
| Boise to Sikeston (Missouri) | 1,472.28 mi (2,369.40 km) |
| Boise to Siloam Springs (Arkansas) | 1,254.40 mi (2,018.76 km) |
