| Darby to Bound Brook (New Jersey) | 58.72 mi (94.51 km) |
| Darby to Bountiful (Utah) | 1,913.08 mi (3,078.81 km) |
| Darby to Bourbonnais (Illinois) | 667.50 mi (1,074.24 km) |
| Darby to Bowie (Maryland) | 103.39 mi (166.38 km) |
| Darby to Bowling Green (Kentucky) | 637.69 mi (1,026.26 km) |
| Darby to Bowling Green (Ohio) | 450.91 mi (725.67 km) |
| Darby to Box Elder (South Dakota) | 1,449.88 mi (2,333.35 km) |
| Darby to Boynton Beach (Florida) | 965.96 mi (1,554.56 km) |
| Darby to Bozeman (Montana) | 1,841.50 mi (2,963.61 km) |
| Darby to Bradenton (Florida) | 955.39 mi (1,537.55 km) |
| Darby to Bradfordville (Florida) | 818.70 mi (1,317.56 km) |
| Darby to Bradley (Illinois) | 665.70 mi (1,071.34 km) |
| Darby to Bradley Gardens (New Jersey) | 54.74 mi (88.09 km) |
| Darby to Brainerd (Minnesota) | 1,049.70 mi (1,689.32 km) |
| Darby to Brambleton (Virginia) | 137.50 mi (221.29 km) |
