| Dorchester to Blue Springs (Missouri) | 4,274.80 mi (6,879.63 km) |
| Dorchester to Bluffdale (Utah) | 4,838.19 mi (7,786.31 km) |
| Dorchester to Bluffton (Indiana) | 3,837.50 mi (6,175.85 km) |
| Dorchester to Bluffton (South Carolina) | 4,056.07 mi (6,527.62 km) |
| Dorchester to Blythe (California) | 5,301.66 mi (8,532.20 km) |
| Dorchester to Blytheville (Arkansas) | 4,250.61 mi (6,840.69 km) |
| Dorchester to Boca Raton (Florida) | 4,303.92 mi (6,926.50 km) |
| Dorchester to Boerne (Texas) | 4,911.13 mi (7,903.70 km) |
| Dorchester to Bogalusa (Louisiana) | 4,500.17 mi (7,242.32 km) |
| Dorchester to Boiling Springs (South Carolina) | 3,966.98 mi (6,384.24 km) |
| Dorchester to Boise (Idaho) | 4,807.99 mi (7,737.71 km) |
| Dorchester to Bolingbrook (Illinois) | 3,910.44 mi (6,293.24 km) |
| Dorchester to Bolivar (Missouri) | 4,309.46 mi (6,935.40 km) |
| Dorchester to Bon Air (Virginia) | 3,669.81 mi (5,905.98 km) |
| Dorchester to Bonham (Texas) | 4,616.62 mi (7,429.72 km) |
