| Delaware to Baraboo (Wisconsin) | 407.14 mi (655.23 km) |
| Delaware to Barberton (Ohio) | 91.91 mi (147.91 km) |
| Delaware to Bardstown (Kentucky) | 213.03 mi (342.83 km) |
| Delaware to Barrington (Illinois) | 292.55 mi (470.81 km) |
| Delaware to Barstow (California) | 1,885.62 mi (3,034.61 km) |
| Delaware to Bartlesville (Oklahoma) | 736.98 mi (1,186.06 km) |
| Delaware to Bartlett (Illinois) | 291.61 mi (469.30 km) |
| Delaware to Bartlett (Tennessee) | 507.22 mi (816.29 km) |
| Delaware to Bartow (Florida) | 859.61 mi (1,383.40 km) |
| Delaware to Batavia (Illinois) | 293.33 mi (472.07 km) |
| Delaware to Batavia (New York) | 314.56 mi (506.24 km) |
| Delaware to Batesville (Arkansas) | 559.80 mi (900.92 km) |
| Delaware to Baton Rouge (Louisiana) | 816.84 mi (1,314.58 km) |
| Delaware to Battle Creek (Michigan) | 178.52 mi (287.30 km) |
| Delaware to Battle Ground (Washington) | 2,007.96 mi (3,231.50 km) |
