| Darby to Brown Deer (Wisconsin) | 693.96 mi (1,116.82 km) |
| Darby to Brownsburg (Indiana) | 589.38 mi (948.51 km) |
| Darby to Brownsville (Florida) | 1,015.67 mi (1,634.56 km) |
| Darby to Brownsville (Texas) | 1,598.97 mi (2,573.30 km) |
| Darby to Brownwood (Texas) | 1,438.99 mi (2,315.83 km) |
| Darby to Brunswick (Georgia) | 699.36 mi (1,125.51 km) |
| Darby to Brunswick (Ohio) | 356.04 mi (572.99 km) |
| Darby to Brushy Creek (Texas) | 1,420.02 mi (2,285.29 km) |
| Darby to Bryan (Texas) | 1,347.00 mi (2,167.79 km) |
| Darby to Bryant (Arkansas) | 1,013.78 mi (1,631.51 km) |
| Darby to Bryn Mawr-Skyway (Washington) | 2,366.19 mi (3,808.02 km) |
| Darby to Buckeye (Arizona) | 2,103.42 mi (3,385.12 km) |
| Darby to Buckhall (Virginia) | 143.17 mi (230.41 km) |
| Darby to Bucyrus (Ohio) | 410.38 mi (660.44 km) |
| Darby to Buda (Texas) | 1,442.27 mi (2,321.11 km) |
