| Fort Thomas to Blue Island (Illinois) | 246.17 mi (396.17 km) |
| Fort Thomas to Blue Springs (Missouri) | 526.73 mi (847.68 km) |
| Fort Thomas to Bluffdale (Utah) | 1,456.82 mi (2,344.53 km) |
| Fort Thomas to Bluffton (Indiana) | 121.05 mi (194.80 km) |
| Fort Thomas to Bluffton (South Carolina) | 513.84 mi (826.95 km) |
| Fort Thomas to Blythe (California) | 1,712.21 mi (2,755.53 km) |
| Fort Thomas to Blytheville (Arkansas) | 369.54 mi (594.72 km) |
| Fort Thomas to Boca Raton (Florida) | 913.09 mi (1,469.47 km) |
| Fort Thomas to Boerne (Texas) | 1,034.35 mi (1,664.63 km) |
| Fort Thomas to Bogalusa (Louisiana) | 649.86 mi (1,045.86 km) |
| Fort Thomas to Boiling Springs (South Carolina) | 310.34 mi (499.44 km) |
| Fort Thomas to Boise (Idaho) | 1,667.26 mi (2,683.20 km) |
| Fort Thomas to Bolingbrook (Illinois) | 263.44 mi (423.97 km) |
| Fort Thomas to Bolivar (Missouri) | 496.19 mi (798.55 km) |
| Fort Thomas to Bon Air (Virginia) | 388.25 mi (624.83 km) |
