| Swansea to Bispham | 4,017.18 mi (6,465.03 km) |
| Swansea to Blackburn | 4,040.97 mi (6,503.32 km) |
| Swansea to Blackpool | 4,017.86 mi (6,466.12 km) |
| Swansea to Blairgowrie | 3,934.58 mi (6,332.10 km) |
| Swansea to Blandford Forum | 4,135.95 mi (6,656.18 km) |
| Swansea to Blaydon | 4,035.68 mi (6,494.80 km) |
| Swansea to Bletchley | 4,157.82 mi (6,691.36 km) |
| Swansea to Bloxwich | 4,090.98 mi (6,583.80 km) |
| Swansea to Blunsdon Saint Andrew | 4,128.38 mi (6,643.99 km) |
| Swansea to Blyth | 4,038.65 mi (6,499.58 km) |
| Swansea to Bo'ness | 3,939.50 mi (6,340.02 km) |
| Swansea to Bodmin | 4,045.60 mi (6,510.76 km) |
| Swansea to Bognor Regis | 4,196.65 mi (6,753.86 km) |
| Swansea to Bolsover | 4,100.40 mi (6,598.96 km) |
| Swansea to Bolton | 4,047.67 mi (6,514.10 km) |
