| Idrija to Bountiful (Utah) | 5,571.04 mi (8,965.72 km) |
| Idrija to Bourbonnais (Illinois) | 4,735.75 mi (7,621.46 km) |
| Idrija to Bowie (Maryland) | 4,392.58 mi (7,069.17 km) |
| Idrija to Bowling Green (Kentucky) | 4,879.34 mi (7,852.53 km) |
| Idrija to Bowling Green (Ohio) | 4,563.84 mi (7,344.79 km) |
| Idrija to Box Elder (South Dakota) | 5,121.86 mi (8,242.84 km) |
| Idrija to Boynton Beach (Florida) | 5,108.24 mi (8,220.92 km) |
| Idrija to Bozeman (Montana) | 5,276.14 mi (8,491.13 km) |
| Idrija to Bradenton (Florida) | 5,172.24 mi (8,323.91 km) |
| Idrija to Bradfordville (Florida) | 5,093.85 mi (8,197.76 km) |
| Idrija to Bradley (Illinois) | 4,735.39 mi (7,620.87 km) |
| Idrija to Bradley Gardens (New Jersey) | 4,236.94 mi (6,818.70 km) |
| Idrija to Brainerd (Minnesota) | 4,715.37 mi (7,588.66 km) |
| Idrija to Brambleton (Virginia) | 4,424.38 mi (7,120.36 km) |
| Idrija to Brandermill (Virginia) | 4,497.70 mi (7,238.34 km) |
