| Southborough to Bay City (Texas) | 4,937.54 mi (7,946.20 km) |
| Southborough to Bay Point (California) | 5,354.63 mi (8,617.44 km) |
| Southborough to Bay Shore (New York) | 3,453.16 mi (5,557.32 km) |
| Southborough to Bay Village (Ohio) | 3,770.23 mi (6,067.59 km) |
| Southborough to Bayamón (Puerto Rico) | 4,220.21 mi (6,791.76 km) |
| Southborough to Bayonet Point (Florida) | 4,426.51 mi (7,123.77 km) |
| Southborough to Bayonne (New Jersey) | 3,491.39 mi (5,618.85 km) |
| Southborough to Bayou Blue (Louisiana) | 4,691.52 mi (7,550.27 km) |
| Southborough to Bayou Cane (Louisiana) | 4,695.17 mi (7,556.15 km) |
| Southborough to Bayshore Gardens (Florida) | 4,466.65 mi (7,188.38 km) |
| Southborough to Baytown (Texas) | 4,857.85 mi (7,817.95 km) |
| Southborough to Beach Park (Illinois) | 3,957.20 mi (6,368.50 km) |
| Southborough to Beachwood (New Jersey) | 3,526.88 mi (5,675.96 km) |
| Southborough to Beachwood (Ohio) | 3,753.70 mi (6,040.99 km) |
| Southborough to Beacon (New York) | 3,449.47 mi (5,551.38 km) |
