| Duncan to Bathgate | 4,436.51 mi (7,139.87 km) |
| Duncan to Batley | 4,573.39 mi (7,360.16 km) |
| Duncan to Beaconsfield | 4,677.60 mi (7,527.87 km) |
| Duncan to Bearsden | 4,411.61 mi (7,099.80 km) |
| Duncan to Bebington | 4,534.11 mi (7,296.94 km) |
| Duncan to Beccles | 4,731.35 mi (7,614.37 km) |
| Duncan to Beckenham | 4,707.12 mi (7,575.38 km) |
| Duncan to Bedford | 4,666.52 mi (7,510.04 km) |
| Duncan to Bedlington | 4,532.02 mi (7,293.59 km) |
| Duncan to Bedwas | 4,579.64 mi (7,370.22 km) |
| Duncan to Bedworth | 4,617.94 mi (7,431.85 km) |
| Duncan to Beeston | 4,613.48 mi (7,424.68 km) |
| Duncan to Belfast | 4,390.21 mi (7,065.36 km) |
| Duncan to Belgrave | 4,625.32 mi (7,443.73 km) |
| Duncan to Bellshill | 4,425.39 mi (7,121.97 km) |
