| Darby to Bixby (Oklahoma) | 1,153.75 mi (1,856.78 km) |
| Darby to Black Forest (Colorado) | 1,562.42 mi (2,514.47 km) |
| Darby to Blackfoot (Idaho) | 1,914.81 mi (3,081.59 km) |
| Darby to Blackhawk (California) | 2,484.85 mi (3,998.99 km) |
| Darby to Blacksburg (Virginia) | 335.27 mi (539.56 km) |
| Darby to Blackwells Mills (New Jersey) | 51.99 mi (83.67 km) |
| Darby to Blaine (Minnesota) | 980.26 mi (1,577.58 km) |
| Darby to Bloomingdale (Florida) | 923.08 mi (1,485.56 km) |
| Darby to Bloomingdale (Illinois) | 683.42 mi (1,099.85 km) |
| Darby to Bloomington (California) | 2,338.56 mi (3,763.55 km) |
| Darby to Bloomington (Illinois) | 723.79 mi (1,164.82 km) |
| Darby to Bloomington (Indiana) | 602.07 mi (968.94 km) |
| Darby to Bloomington (Minnesota) | 979.41 mi (1,576.21 km) |
| Darby to Bloomsburg (Pennsylvania) | 97.63 mi (157.13 km) |
| Darby to Blue Ash (Ohio) | 487.73 mi (784.92 km) |
