| Prospect Heights to Blue Island (Illinois) | 33.31 mi (53.61 km) |
| Prospect Heights to Blue Springs (Missouri) | 395.53 mi (636.54 km) |
| Prospect Heights to Bluffdale (Utah) | 1,247.52 mi (2,007.69 km) |
| Prospect Heights to Bluffton (Indiana) | 170.87 mi (275.00 km) |
| Prospect Heights to Bluffton (South Carolina) | 783.76 mi (1,261.34 km) |
| Prospect Heights to Blythe (California) | 1,561.40 mi (2,512.83 km) |
| Prospect Heights to Blytheville (Arkansas) | 439.42 mi (707.18 km) |
| Prospect Heights to Boca Raton (Florida) | 1,173.61 mi (1,888.75 km) |
| Prospect Heights to Boerne (Texas) | 1,041.93 mi (1,676.83 km) |
| Prospect Heights to Bogalusa (Louisiana) | 789.63 mi (1,270.79 km) |
| Prospect Heights to Boiling Springs (South Carolina) | 583.71 mi (939.39 km) |
| Prospect Heights to Boise (Idaho) | 1,430.46 mi (2,302.11 km) |
| Prospect Heights to Bolingbrook (Illinois) | 29.98 mi (48.25 km) |
| Prospect Heights to Bolivar (Missouri) | 425.73 mi (685.14 km) |
| Prospect Heights to Bon Air (Virginia) | 633.72 mi (1,019.87 km) |
