| Middlesex to Bonham (Texas) | 1,285.00 mi (2,068.01 km) |
| Middlesex to Bonita (California) | 2,396.59 mi (3,856.95 km) |
| Middlesex to Bonita Springs (Florida) | 1,067.36 mi (1,717.76 km) |
| Middlesex to Bonney Lake (Washington) | 2,379.33 mi (3,829.17 km) |
| Middlesex to Boone (Iowa) | 1,008.53 mi (1,623.08 km) |
| Middlesex to Boone (North Carolina) | 491.11 mi (790.36 km) |
| Middlesex to Borger (Texas) | 1,494.88 mi (2,405.78 km) |
| Middlesex to Bossier City (Louisiana) | 1,196.88 mi (1,926.19 km) |
| Middlesex to Boston (Massachusetts) | 214.04 mi (344.46 km) |
| Middlesex to Bostonia (California) | 2,387.75 mi (3,842.71 km) |
| Middlesex to Bothell (Washington) | 2,376.37 mi (3,824.40 km) |
| Middlesex to Bothell East (Washington) | 2,375.21 mi (3,822.53 km) |
| Middlesex to Bothell West (Washington) | 2,377.79 mi (3,826.68 km) |
| Middlesex to Boulder (Colorado) | 1,612.62 mi (2,595.27 km) |
| Middlesex to Boulder City (Nevada) | 2,199.46 mi (3,539.68 km) |
