| Louisville to Baraboo (Wisconsin) | 424.10 mi (682.53 km) |
| Louisville to Barberton (Ohio) | 291.44 mi (469.03 km) |
| Louisville to Bardstown (Kentucky) | 26.30 mi (42.33 km) |
| Louisville to Barrington (Illinois) | 304.86 mi (490.62 km) |
| Louisville to Barstow (California) | 1,749.96 mi (2,816.29 km) |
| Louisville to Bartlesville (Oklahoma) | 573.06 mi (922.26 km) |
| Louisville to Bartlett (Illinois) | 296.18 mi (476.66 km) |
| Louisville to Bartlett (Tennessee) | 307.26 mi (494.48 km) |
| Louisville to Bartow (Florida) | 743.84 mi (1,197.09 km) |
| Louisville to Batavia (Illinois) | 290.75 mi (467.92 km) |
| Louisville to Batavia (New York) | 514.47 mi (827.96 km) |
| Louisville to Batesville (Arkansas) | 368.96 mi (593.78 km) |
| Louisville to Baton Rouge (Louisiana) | 618.36 mi (995.16 km) |
| Louisville to Battle Creek (Michigan) | 286.36 mi (460.85 km) |
| Louisville to Battle Ground (Washington) | 1,947.71 mi (3,134.54 km) |
