| Swansea to Belvedere Marittimo | 5,288.17 mi (8,510.49 km) |
| Swansea to Benevento | 5,178.00 mi (8,333.18 km) |
| Swansea to Bergamo | 4,784.40 mi (7,699.75 km) |
| Swansea to Bernalda | 5,286.40 mi (8,507.63 km) |
| Swansea to Bertinoro | 4,944.45 mi (7,957.32 km) |
| Swansea to Besana in Brianza | 4,768.80 mi (7,674.64 km) |
| Swansea to Besozzo | 4,738.37 mi (7,625.68 km) |
| Swansea to Biancavilla | 5,332.34 mi (8,581.58 km) |
| Swansea to Biassono | 4,770.73 mi (7,677.75 km) |
| Swansea to Bibbiano | 4,856.84 mi (7,816.32 km) |
| Swansea to Bibbiena | 4,950.14 mi (7,966.48 km) |
| Swansea to Biella | 4,725.16 mi (7,604.42 km) |
| Swansea to Bisceglie | 5,242.91 mi (8,437.65 km) |
| Swansea to Bisignano | 5,309.70 mi (8,545.13 km) |
| Swansea to Bitetto | 5,261.95 mi (8,468.29 km) |
