| Swansea to Ayamonte | 4,338.72 mi (6,982.49 km) |
| Swansea to Azcoitia | 4,372.44 mi (7,036.76 km) |
| Swansea to Azpeitia | 4,374.34 mi (7,039.82 km) |
| Swansea to Azuqueca de Henares | 4,417.92 mi (7,109.95 km) |
| Swansea to Badajoz | 4,302.61 mi (6,924.38 km) |
| Swansea to Badalona | 4,633.67 mi (7,457.18 km) |
| Swansea to Baena | 4,471.15 mi (7,195.63 km) |
| Swansea to Baeza | 4,498.27 mi (7,239.27 km) |
| Swansea to Bailen | 4,480.70 mi (7,210.99 km) |
| Swansea to Balaguer | 4,557.91 mi (7,335.24 km) |
| Swansea to Banolas | 4,631.89 mi (7,454.31 km) |
| Swansea to Baranain | 4,413.63 mi (7,103.05 km) |
| Swansea to Barbadanes | 4,149.54 mi (6,678.05 km) |
| Swansea to Barbastro | 4,519.22 mi (7,272.99 km) |
| Swansea to Barcelona | 4,633.05 mi (7,456.17 km) |
