| South Portland to Brandermill (Virginia) | 576.43 mi (927.67 km) |
| South Portland to Brandon (Florida) | 1,273.26 mi (2,049.12 km) |
| South Portland to Brandon (Mississippi) | 1,323.72 mi (2,130.32 km) |
| South Portland to Brandon (South Dakota) | 1,309.65 mi (2,107.68 km) |
| South Portland to Branson (Missouri) | 1,300.44 mi (2,092.85 km) |
| South Portland to Braselton (Georgia) | 978.53 mi (1,574.78 km) |
| South Portland to Brawley (California) | 2,526.73 mi (4,066.38 km) |
| South Portland to Brea (California) | 2,611.02 mi (4,202.03 km) |
| South Portland to Brecksville (Ohio) | 598.77 mi (963.63 km) |
| South Portland to Bremerton (Washington) | 2,500.65 mi (4,024.40 km) |
| South Portland to Brenham (Texas) | 1,705.45 mi (2,744.65 km) |
| South Portland to Brent (Florida) | 1,299.39 mi (2,091.16 km) |
| South Portland to Brentwood (California) | 2,675.87 mi (4,306.39 km) |
| South Portland to Brentwood (New York) | 248.33 mi (399.65 km) |
| South Portland to Brentwood (Tennessee) | 1,019.09 mi (1,640.07 km) |
