| Southborough to Bahce | 2,013.44 mi (3,240.33 km) |
| Southborough to Bahcesaray | 2,238.15 mi (3,601.96 km) |
| Southborough to Balikesir | 1,545.06 mi (2,486.54 km) |
| Southborough to Balya | 1,527.67 mi (2,458.55 km) |
| Southborough to Banaz | 1,661.48 mi (2,673.89 km) |
| Southborough to Bandirma | 1,517.00 mi (2,441.37 km) |
| Southborough to Bartin | 1,647.22 mi (2,650.95 km) |
| Southborough to Baskale | 2,293.57 mi (3,691.15 km) |
| Southborough to Baskil | 2,048.72 mi (3,297.10 km) |
| Southborough to Basmakci | 1,710.48 mi (2,752.75 km) |
| Southborough to Batman | 2,176.50 mi (3,502.73 km) |
| Southborough to Battalgazi | 2,035.46 mi (3,275.75 km) |
| Southborough to Bayat | 1,768.37 mi (2,845.92 km) |
| Southborough to Bayburt | 2,039.59 mi (3,282.40 km) |
| Southborough to Bayindir | 1,600.36 mi (2,575.52 km) |
