| Welwyn Garden City to Barberino di Mugello | 754.10 mi (1,213.60 km) |
| Welwyn Garden City to Barcellona-Pozzo di Gotto | 1,202.11 mi (1,934.61 km) |
| Welwyn Garden City to Bareggio | 605.25 mi (974.06 km) |
| Welwyn Garden City to Barga | 726.19 mi (1,168.68 km) |
| Welwyn Garden City to Bari | 1,092.22 mi (1,757.76 km) |
| Welwyn Garden City to Barletta | 1,062.21 mi (1,709.46 km) |
| Welwyn Garden City to Baronissi | 1,042.26 mi (1,677.36 km) |
| Welwyn Garden City to Barrafranca | 1,218.71 mi (1,961.32 km) |
| Welwyn Garden City to Bassano del Grappa | 683.38 mi (1,099.79 km) |
| Welwyn Garden City to Battipaglia | 1,056.17 mi (1,699.74 km) |
| Welwyn Garden City to Beinasco | 588.59 mi (947.24 km) |
| Welwyn Garden City to Bellinzago Novarese | 588.17 mi (946.58 km) |
| Welwyn Garden City to Belluno | 684.14 mi (1,101.02 km) |
| Welwyn Garden City to Belmonte Mezzagno | 1,155.40 mi (1,859.43 km) |
| Welwyn Garden City to Belpasso | 1,228.20 mi (1,976.59 km) |
