| Swansea to Bathgate | 3,941.17 mi (6,342.71 km) |
| Swansea to Batley | 4,073.48 mi (6,555.64 km) |
| Swansea to Beaconsfield | 4,173.38 mi (6,716.40 km) |
| Swansea to Bearsden | 3,915.85 mi (6,301.95 km) |
| Swansea to Bebington | 4,032.34 mi (6,489.42 km) |
| Swansea to Beccles | 4,230.72 mi (6,808.68 km) |
| Swansea to Beckenham | 4,202.91 mi (6,763.92 km) |
| Swansea to Bedford | 4,163.62 mi (6,700.69 km) |
| Swansea to Bedlington | 4,035.95 mi (6,495.24 km) |
| Swansea to Bedwas | 4,073.70 mi (6,555.98 km) |
| Swansea to Bedworth | 4,115.11 mi (6,622.63 km) |
| Swansea to Beeston | 4,111.92 mi (6,617.49 km) |
| Swansea to Belfast | 3,889.73 mi (6,259.92 km) |
| Swansea to Belgrave | 4,123.16 mi (6,635.59 km) |
| Swansea to Bellshill | 3,929.53 mi (6,323.97 km) |
