| Darby to Baraboo (Wisconsin) | 784.86 mi (1,263.11 km) |
| Darby to Barberton (Ohio) | 341.70 mi (549.92 km) |
| Darby to Bardstown (Kentucky) | 566.95 mi (912.42 km) |
| Darby to Barrington (Illinois) | 687.34 mi (1,106.17 km) |
| Darby to Barstow (California) | 2,299.05 mi (3,699.96 km) |
| Darby to Bartlesville (Oklahoma) | 1,139.80 mi (1,834.32 km) |
| Darby to Bartlett (Illinois) | 689.68 mi (1,109.94 km) |
| Darby to Bartlett (Tennessee) | 859.16 mi (1,382.69 km) |
| Darby to Bartow (Florida) | 911.93 mi (1,467.61 km) |
| Darby to Batavia (Illinois) | 693.84 mi (1,116.63 km) |
| Darby to Batavia (New York) | 260.86 mi (419.81 km) |
| Darby to Batesville (Arkansas) | 936.07 mi (1,506.45 km) |
| Darby to Baton Rouge (Louisiana) | 1,107.19 mi (1,781.84 km) |
| Darby to Battle Creek (Michigan) | 543.94 mi (875.39 km) |
| Darby to Battle Ground (Washington) | 2,393.22 mi (3,851.51 km) |
