| London Colney to Bicaz | 1,226.74 mi (1,974.24 km) |
| London Colney to Bistrita | 1,152.41 mi (1,854.63 km) |
| London Colney to Blaj | 1,157.29 mi (1,862.47 km) |
| London Colney to Bocsa | 1,092.69 mi (1,758.52 km) |
| London Colney to Boldesti-Scaeni | 1,285.21 mi (2,068.35 km) |
| London Colney to Bolintin Vale | 1,294.71 mi (2,083.64 km) |
| London Colney to Borsa | 1,144.50 mi (1,841.90 km) |
| London Colney to Botosani | 1,227.68 mi (1,975.76 km) |
| London Colney to Brad | 1,111.48 mi (1,788.76 km) |
| London Colney to Bragadiru | 1,306.62 mi (2,102.81 km) |
| London Colney to Braila | 1,358.37 mi (2,186.09 km) |
| London Colney to Brasov | 1,245.95 mi (2,005.16 km) |
| London Colney to Breaza | 1,264.25 mi (2,034.61 km) |
| London Colney to Bucharest | 1,309.75 mi (2,107.83 km) |
| London Colney to Buftea | 1,298.29 mi (2,089.39 km) |
