| Boise to Bountiful (Utah) | 292.20 mi (470.24 km) |
| Boise to Bourbonnais (Illinois) | 1,449.29 mi (2,332.40 km) |
| Boise to Bowie (Maryland) | 2,055.77 mi (3,308.44 km) |
| Boise to Bowling Green (Kentucky) | 1,625.84 mi (2,616.53 km) |
| Boise to Bowling Green (Ohio) | 1,656.41 mi (2,665.74 km) |
| Boise to Box Elder (South Dakota) | 655.36 mi (1,054.70 km) |
| Boise to Boynton Beach (Florida) | 2,333.85 mi (3,755.97 km) |
| Boise to Bozeman (Montana) | 292.20 mi (470.26 km) |
| Boise to Bradenton (Florida) | 2,173.29 mi (3,497.58 km) |
| Boise to Bradfordville (Florida) | 1,964.51 mi (3,161.57 km) |
| Boise to Bradley (Illinois) | 1,451.31 mi (2,335.65 km) |
| Boise to Bradley Gardens (New Jersey) | 2,119.18 mi (3,410.49 km) |
| Boise to Brainerd (Minnesota) | 1,089.84 mi (1,753.93 km) |
| Boise to Brambleton (Virginia) | 2,015.63 mi (3,243.84 km) |
| Boise to Brandermill (Virginia) | 2,051.39 mi (3,301.40 km) |
