| Rock Island to Blue Island (Illinois) | 150.56 mi (242.30 km) |
| Rock Island to Blue Springs (Missouri) | 258.21 mi (415.54 km) |
| Rock Island to Bluffdale (Utah) | 1,113.34 mi (1,791.75 km) |
| Rock Island to Bluffton (Indiana) | 286.04 mi (460.33 km) |
| Rock Island to Bluffton (South Carolina) | 831.81 mi (1,338.67 km) |
| Rock Island to Blythe (California) | 1,418.05 mi (2,282.13 km) |
| Rock Island to Blytheville (Arkansas) | 384.36 mi (618.57 km) |
| Rock Island to Boca Raton (Florida) | 1,201.31 mi (1,933.31 km) |
| Rock Island to Boerne (Texas) | 926.93 mi (1,491.75 km) |
| Rock Island to Bogalusa (Louisiana) | 739.60 mi (1,190.27 km) |
| Rock Island to Boiling Springs (South Carolina) | 643.58 mi (1,035.75 km) |
| Rock Island to Boise (Idaho) | 1,308.81 mi (2,106.33 km) |
| Rock Island to Bolingbrook (Illinois) | 129.10 mi (207.77 km) |
| Rock Island to Bolivar (Missouri) | 306.70 mi (493.59 km) |
| Rock Island to Bon Air (Virginia) | 744.58 mi (1,198.28 km) |
