| South Portland to Burnley | 3,055.55 mi (4,917.43 km) |
| South Portland to Burntwood | 3,090.12 mi (4,973.07 km) |
| South Portland to Burscough | 3,035.70 mi (4,885.49 km) |
| South Portland to Burslem | 3,072.25 mi (4,944.31 km) |
| South Portland to Burton upon Trent | 3,099.04 mi (4,987.42 km) |
| South Portland to Burtonwood | 3,045.99 mi (4,902.04 km) |
| South Portland to Bury | 3,057.27 mi (4,920.20 km) |
| South Portland to Bury Saint Edmunds | 3,205.03 mi (5,158.00 km) |
| South Portland to Bushey | 3,175.19 mi (5,109.97 km) |
| South Portland to Buxton | 3,079.01 mi (4,955.18 km) |
| South Portland to Caerdydd | 3,063.64 mi (4,930.46 km) |
| South Portland to Caerfyrddin | 3,009.51 mi (4,843.35 km) |
| South Portland to Caernarfon | 2,987.30 mi (4,807.59 km) |
| South Portland to Caerphilly | 3,060.07 mi (4,924.70 km) |
| South Portland to Caister-on-Sea | 3,236.24 mi (5,208.22 km) |
