| Northolt to Bitonto | 1,082.04 mi (1,741.37 km) |
| Northolt to Bitritto | 1,090.72 mi (1,755.34 km) |
| Northolt to Bollate | 599.06 mi (964.10 km) |
| Northolt to Bologna | 726.75 mi (1,169.59 km) |
| Northolt to Bolzano | 634.37 mi (1,020.92 km) |
| Northolt to Bomporto | 704.27 mi (1,133.42 km) |
| Northolt to Bonate di Sopra | 607.44 mi (977.57 km) |
| Northolt to Bondeno | 710.13 mi (1,142.84 km) |
| Northolt to Bordighera | 653.04 mi (1,050.96 km) |
| Northolt to Borgaro Torinese | 574.60 mi (924.73 km) |
| Northolt to Borgo a Buggiano | 737.89 mi (1,187.52 km) |
| Northolt to Borgo San Dalmazzo | 616.12 mi (991.54 km) |
| Northolt to Borgo San Lorenzo | 755.68 mi (1,216.15 km) |
| Northolt to Borgomanero | 570.26 mi (917.75 km) |
| Northolt to Borgoricco | 700.05 mi (1,126.63 km) |
