| London Colney to Brownsburg (Indiana) | 3,981.91 mi (6,408.27 km) |
| London Colney to Brownsville (Florida) | 4,417.75 mi (7,109.69 km) |
| London Colney to Brownsville (Texas) | 5,116.59 mi (8,234.36 km) |
| London Colney to Brownwood (Texas) | 4,873.71 mi (7,843.48 km) |
| London Colney to Brunswick (Georgia) | 4,203.09 mi (6,764.22 km) |
| London Colney to Brunswick (Ohio) | 3,738.45 mi (6,016.46 km) |
| London Colney to Brushy Creek (Texas) | 4,889.11 mi (7,868.26 km) |
| London Colney to Bryan (Texas) | 4,828.38 mi (7,770.53 km) |
| London Colney to Bryant (Arkansas) | 4,474.23 mi (7,200.58 km) |
| London Colney to Bryn Mawr-Skyway (Washington) | 4,771.78 mi (7,679.44 km) |
| London Colney to Buckeye (Arizona) | 5,275.21 mi (8,489.63 km) |
| London Colney to Buckhall (Virginia) | 3,677.85 mi (5,918.92 km) |
| London Colney to Bucyrus (Ohio) | 3,803.73 mi (6,121.50 km) |
| London Colney to Buda (Texas) | 4,916.33 mi (7,912.06 km) |
| London Colney to Buena Park (California) | 5,428.42 mi (8,736.20 km) |
