| Delaware to Bonham (Texas) | 858.11 mi (1,381.00 km) |
| Delaware to Bonita (California) | 1,945.46 mi (3,130.91 km) |
| Delaware to Bonita Springs (Florida) | 965.26 mi (1,553.43 km) |
| Delaware to Bonney Lake (Washington) | 1,986.88 mi (3,197.58 km) |
| Delaware to Boone (Iowa) | 574.57 mi (924.69 km) |
| Delaware to Boone (North Carolina) | 291.65 mi (469.36 km) |
| Delaware to Borger (Texas) | 1,045.85 mi (1,683.13 km) |
| Delaware to Bossier City (Louisiana) | 795.56 mi (1,280.33 km) |
| Delaware to Boston (Massachusetts) | 637.37 mi (1,025.75 km) |
| Delaware to Bostonia (California) | 1,936.62 mi (3,116.69 km) |
| Delaware to Bothell (Washington) | 1,988.42 mi (3,200.06 km) |
| Delaware to Bothell East (Washington) | 1,987.51 mi (3,198.59 km) |
| Delaware to Bothell West (Washington) | 1,990.10 mi (3,202.75 km) |
| Delaware to Boulder (Colorado) | 1,168.27 mi (1,880.14 km) |
| Delaware to Boulder City (Nevada) | 1,749.99 mi (2,816.34 km) |
