| South Portland to Billingham | 3,078.30 mi (4,954.04 km) |
| South Portland to Bilston | 3,086.36 mi (4,967.02 km) |
| South Portland to Binfield | 3,162.36 mi (5,089.33 km) |
| South Portland to Bingham | 3,123.20 mi (5,026.30 km) |
| South Portland to Bingley | 3,070.64 mi (4,941.71 km) |
| South Portland to Birchington | 3,248.82 mi (5,228.47 km) |
| South Portland to Birkenhead | 3,032.71 mi (4,880.67 km) |
| South Portland to Birmingham | 3,094.96 mi (4,980.85 km) |
| South Portland to Birstall | 3,079.72 mi (4,956.33 km) |
| South Portland to Birstall | 3,122.31 mi (5,024.88 km) |
| South Portland to Bishop Auckland | 3,061.67 mi (4,927.29 km) |
| South Portland to Bishopbriggs | 2,943.86 mi (4,737.68 km) |
| South Portland to Bishops Cleeve | 3,099.60 mi (4,988.32 km) |
| South Portland to Bishops Stortford | 3,191.58 mi (5,136.35 km) |
| South Portland to Bishopstoke | 3,150.84 mi (5,070.78 km) |
