| Fallbrook to Blue Island (Illinois) | 1,707.42 mi (2,747.83 km) |
| Fallbrook to Blue Springs (Missouri) | 1,333.84 mi (2,146.61 km) |
| Fallbrook to Bluffdale (Utah) | 570.96 mi (918.87 km) |
| Fallbrook to Bluffton (Indiana) | 1,827.95 mi (2,941.80 km) |
| Fallbrook to Bluffton (South Carolina) | 2,098.90 mi (3,377.86 km) |
| Fallbrook to Blythe (California) | 151.18 mi (243.31 km) |
| Fallbrook to Blytheville (Arkansas) | 1,557.83 mi (2,507.08 km) |
| Fallbrook to Boca Raton (Florida) | 2,263.32 mi (3,642.47 km) |
| Fallbrook to Boerne (Texas) | 1,114.94 mi (1,794.33 km) |
| Fallbrook to Bogalusa (Louisiana) | 1,607.30 mi (2,586.70 km) |
| Fallbrook to Boiling Springs (South Carolina) | 2,006.98 mi (3,229.93 km) |
| Fallbrook to Boise (Idaho) | 708.94 mi (1,140.92 km) |
| Fallbrook to Bolingbrook (Illinois) | 1,686.43 mi (2,714.05 km) |
| Fallbrook to Bolivar (Missouri) | 1,367.08 mi (2,200.10 km) |
| Fallbrook to Bon Air (Virginia) | 2,233.91 mi (3,595.14 km) |
