| Defiance to Baraboo (Wisconsin) | 313.02 mi (503.76 km) |
| Defiance to Barberton (Ohio) | 144.92 mi (233.23 km) |
| Defiance to Bardstown (Kentucky) | 246.25 mi (396.31 km) |
| Defiance to Barrington (Illinois) | 203.12 mi (326.90 km) |
| Defiance to Barstow (California) | 1,820.38 mi (2,929.62 km) |
| Defiance to Bartlesville (Oklahoma) | 695.71 mi (1,119.63 km) |
| Defiance to Bartlett (Illinois) | 204.16 mi (328.56 km) |
| Defiance to Bartlett (Tennessee) | 511.75 mi (823.59 km) |
| Defiance to Bartow (Florida) | 936.59 mi (1,507.30 km) |
| Defiance to Batavia (Illinois) | 207.65 mi (334.19 km) |
| Defiance to Batavia (New York) | 338.29 mi (544.42 km) |
| Defiance to Batesville (Arkansas) | 546.37 mi (879.30 km) |
| Defiance to Baton Rouge (Louisiana) | 838.59 mi (1,349.59 km) |
| Defiance to Battle Creek (Michigan) | 83.19 mi (133.88 km) |
| Defiance to Battle Ground (Washington) | 1,918.73 mi (3,087.90 km) |
