| Diamond Bar to Blue Island (Illinois) | 1,717.41 mi (2,763.90 km) |
| Diamond Bar to Blue Springs (Missouri) | 1,348.41 mi (2,170.06 km) |
| Diamond Bar to Bluffdale (Utah) | 551.70 mi (887.87 km) |
| Diamond Bar to Bluffton (Indiana) | 1,840.41 mi (2,961.86 km) |
| Diamond Bar to Bluffton (South Carolina) | 2,126.82 mi (3,422.79 km) |
| Diamond Bar to Blythe (California) | 185.35 mi (298.29 km) |
| Diamond Bar to Blytheville (Arkansas) | 1,580.62 mi (2,543.77 km) |
| Diamond Bar to Boca Raton (Florida) | 2,299.21 mi (3,700.23 km) |
| Diamond Bar to Boerne (Texas) | 1,155.01 mi (1,858.81 km) |
| Diamond Bar to Bogalusa (Louisiana) | 1,640.81 mi (2,640.63 km) |
| Diamond Bar to Boiling Springs (South Carolina) | 2,030.41 mi (3,267.62 km) |
| Diamond Bar to Boise (Idaho) | 668.82 mi (1,076.36 km) |
| Diamond Bar to Bolingbrook (Illinois) | 1,696.23 mi (2,729.82 km) |
| Diamond Bar to Bolivar (Missouri) | 1,385.67 mi (2,230.02 km) |
| Diamond Bar to Bon Air (Virginia) | 2,252.36 mi (3,624.82 km) |
