| Swansea to Barberino di Mugello | 4,914.62 mi (7,909.31 km) |
| Swansea to Barcellona-Pozzo di Gotto | 5,325.29 mi (8,570.22 km) |
| Swansea to Bareggio | 4,765.86 mi (7,669.91 km) |
| Swansea to Barga | 4,881.07 mi (7,855.33 km) |
| Swansea to Bari | 5,262.59 mi (8,469.32 km) |
| Swansea to Barletta | 5,230.77 mi (8,418.11 km) |
| Swansea to Baronissi | 5,194.12 mi (8,359.13 km) |
| Swansea to Barrafranca | 5,316.28 mi (8,555.73 km) |
| Swansea to Bassano del Grappa | 4,863.06 mi (7,826.35 km) |
| Swansea to Battipaglia | 5,208.42 mi (8,382.13 km) |
| Swansea to Beinasco | 4,726.59 mi (7,606.71 km) |
| Swansea to Bellinzago Novarese | 4,747.31 mi (7,640.06 km) |
| Swansea to Belluno | 4,866.82 mi (7,832.39 km) |
| Swansea to Belmonte Mezzagno | 5,251.94 mi (8,452.18 km) |
| Swansea to Belpasso | 5,340.20 mi (8,594.22 km) |
