| Dorchester to Black Forest (Colorado) | 4,660.22 mi (7,499.89 km) |
| Dorchester to Blackfoot (Idaho) | 4,706.91 mi (7,575.04 km) |
| Dorchester to Blackhawk (California) | 5,305.83 mi (8,538.91 km) |
| Dorchester to Blacksburg (Virginia) | 3,802.04 mi (6,118.79 km) |
| Dorchester to Blackwells Mills (New Jersey) | 3,417.29 mi (5,499.59 km) |
| Dorchester to Blaine (Minnesota) | 3,946.43 mi (6,351.17 km) |
| Dorchester to Bloomingdale (Florida) | 4,322.61 mi (6,956.57 km) |
| Dorchester to Bloomingdale (Illinois) | 3,898.23 mi (6,273.59 km) |
| Dorchester to Bloomington (California) | 5,372.31 mi (8,645.90 km) |
| Dorchester to Bloomington (Illinois) | 3,999.79 mi (6,437.04 km) |
| Dorchester to Bloomington (Indiana) | 3,963.12 mi (6,378.02 km) |
| Dorchester to Bloomington (Minnesota) | 3,965.80 mi (6,382.34 km) |
| Dorchester to Bloomsburg (Pennsylvania) | 3,472.24 mi (5,588.04 km) |
| Dorchester to Blue Ash (Ohio) | 3,873.01 mi (6,233.01 km) |
| Dorchester to Blue Island (Illinois) | 3,895.45 mi (6,269.12 km) |
