| Southborough to Brookfield (Illinois) | 3,984.56 mi (6,412.54 km) |
| Southborough to Brookfield (Wisconsin) | 3,937.89 mi (6,337.42 km) |
| Southborough to Brookhaven (Georgia) | 4,222.11 mi (6,794.83 km) |
| Southborough to Brookhaven (Mississippi) | 4,583.69 mi (7,376.74 km) |
| Southborough to Brookings (South Dakota) | 4,196.06 mi (6,752.91 km) |
| Southborough to Brooklyn (New York) | 3,485.29 mi (5,609.04 km) |
| Southborough to Brooklyn (Ohio) | 3,765.28 mi (6,059.63 km) |
| Southborough to Brooklyn Center (Minnesota) | 4,036.15 mi (6,495.55 km) |
| Southborough to Brooklyn Park (Maryland) | 3,657.37 mi (5,885.98 km) |
| Southborough to Brooklyn Park (Minnesota) | 4,035.36 mi (6,494.28 km) |
| Southborough to Brookside (Delaware) | 3,600.51 mi (5,794.46 km) |
| Southborough to Broomall (Pennsylvania) | 3,572.44 mi (5,749.29 km) |
| Southborough to Broomfield (Colorado) | 4,704.40 mi (7,571.00 km) |
| Southborough to Broussard (Louisiana) | 4,717.61 mi (7,592.26 km) |
| Southborough to Brown Deer (Wisconsin) | 3,927.24 mi (6,320.29 km) |
