| Boise to Barberino di Mugello | 5,573.54 mi (8,969.75 km) |
| Boise to Barcellona-Pozzo di Gotto | 6,024.19 mi (9,694.99 km) |
| Boise to Bareggio | 5,426.37 mi (8,732.90 km) |
| Boise to Barga | 5,547.38 mi (8,927.65 km) |
| Boise to Bari | 5,897.91 mi (9,491.77 km) |
| Boise to Barletta | 5,870.56 mi (9,447.75 km) |
| Boise to Baronissi | 5,860.91 mi (9,432.23 km) |
| Boise to Barrafranca | 6,039.06 mi (9,718.92 km) |
| Boise to Bassano del Grappa | 5,488.42 mi (8,832.75 km) |
| Boise to Battipaglia | 5,874.51 mi (9,454.10 km) |
| Boise to Beinasco | 5,409.54 mi (8,705.82 km) |
| Boise to Bellinzago Novarese | 5,409.70 mi (8,706.08 km) |
| Boise to Belluno | 5,480.79 mi (8,820.48 km) |
| Boise to Belmonte Mezzagno | 5,975.00 mi (9,615.84 km) |
| Boise to Belpasso | 6,050.10 mi (9,736.70 km) |
