| Northolt to Barberino di Mugello | 748.25 mi (1,204.20 km) |
| Northolt to Barcellona-Pozzo di Gotto | 1,194.73 mi (1,922.73 km) |
| Northolt to Bareggio | 598.95 mi (963.91 km) |
| Northolt to Barga | 719.70 mi (1,158.25 km) |
| Northolt to Bari | 1,088.07 mi (1,751.08 km) |
| Northolt to Barletta | 1,057.81 mi (1,702.38 km) |
| Northolt to Baronissi | 1,036.31 mi (1,667.78 km) |
| Northolt to Barrafranca | 1,210.19 mi (1,947.62 km) |
| Northolt to Bassano del Grappa | 680.28 mi (1,094.81 km) |
| Northolt to Battipaglia | 1,050.28 mi (1,690.26 km) |
| Northolt to Beinasco | 580.07 mi (933.53 km) |
| Northolt to Bellinzago Novarese | 581.64 mi (936.05 km) |
| Northolt to Belluno | 682.03 mi (1,097.62 km) |
| Northolt to Belmonte Mezzagno | 1,146.67 mi (1,845.39 km) |
| Northolt to Belpasso | 1,220.34 mi (1,963.94 km) |
