| South Portland to Brook Park (Ohio) | 606.57 mi (976.18 km) |
| South Portland to Brookfield (Illinois) | 898.10 mi (1,445.36 km) |
| South Portland to Brookfield (Wisconsin) | 895.18 mi (1,440.65 km) |
| South Portland to Brookhaven (Georgia) | 1,010.80 mi (1,626.73 km) |
| South Portland to Brookhaven (Mississippi) | 1,375.87 mi (2,214.25 km) |
| South Portland to Brookings (South Dakota) | 1,312.73 mi (2,112.63 km) |
| South Portland to Brooklyn (New York) | 278.48 mi (448.17 km) |
| South Portland to Brooklyn (Ohio) | 602.34 mi (969.37 km) |
| South Portland to Brooklyn Center (Minnesota) | 1,138.15 mi (1,831.68 km) |
| South Portland to Brooklyn Park (Maryland) | 447.51 mi (720.20 km) |
| South Portland to Brooklyn Park (Minnesota) | 1,139.66 mi (1,834.11 km) |
| South Portland to Brookside (Delaware) | 391.62 mi (630.26 km) |
| South Portland to Broomall (Pennsylvania) | 363.28 mi (584.65 km) |
| South Portland to Broomfield (Colorado) | 1,795.35 mi (2,889.34 km) |
| South Portland to Broussard (Louisiana) | 1,509.39 mi (2,429.13 km) |
