| Key Largo to Barberino di Mugello | 5,110.75 mi (8,224.96 km) |
| Key Largo to Barcellona-Pozzo di Gotto | 5,451.87 mi (8,773.93 km) |
| Key Largo to Bareggio | 4,973.37 mi (8,003.86 km) |
| Key Largo to Barga | 5,073.58 mi (8,165.13 km) |
| Key Largo to Bari | 5,450.24 mi (8,771.32 km) |
| Key Largo to Barletta | 5,417.17 mi (8,718.09 km) |
| Key Largo to Baronissi | 5,359.96 mi (8,626.02 km) |
| Key Largo to Barrafranca | 5,422.05 mi (8,725.95 km) |
| Key Largo to Bassano del Grappa | 5,092.69 mi (8,195.89 km) |
| Key Largo to Battipaglia | 5,373.70 mi (8,648.13 km) |
| Key Largo to Beinasco | 4,917.71 mi (7,914.28 km) |
| Key Largo to Bellinzago Novarese | 4,954.78 mi (7,973.95 km) |
| Key Largo to Belluno | 5,105.86 mi (8,217.09 km) |
| Key Largo to Belmonte Mezzagno | 5,362.68 mi (8,630.40 km) |
| Key Largo to Belpasso | 5,455.68 mi (8,780.06 km) |
