| Boise to Sanford (Maine) | 2,249.43 mi (3,620.10 km) |
| Boise to Sanford (North Carolina) | 2,033.68 mi (3,272.88 km) |
| Boise to Sanger (California) | 508.06 mi (817.65 km) |
| Boise to Santa Ana (California) | 687.28 mi (1,106.06 km) |
| Boise to Santa Barbara (California) | 660.66 mi (1,063.23 km) |
| Boise to Santa Clara (California) | 525.57 mi (845.83 km) |
| Boise to Santa Clara (Oregon) | 345.67 mi (556.30 km) |
| Boise to Santa Clarita (California) | 645.96 mi (1,039.58 km) |
| Boise to Santa Cruz (California) | 550.01 mi (885.16 km) |
| Boise to Santa Fe (New Mexico) | 772.34 mi (1,242.97 km) |
| Boise to Santa Fe (Texas) | 1,522.31 mi (2,449.92 km) |
| Boise to Santa Fe Springs (California) | 675.17 mi (1,086.57 km) |
| Boise to Santa Maria (California) | 639.60 mi (1,029.34 km) |
| Boise to Santa Monica (California) | 672.63 mi (1,082.49 km) |
| Boise to Santa Paula (California) | 656.62 mi (1,056.72 km) |
