| Sioux City to Barberino di Mugello | 4,976.24 mi (8,008.48 km) |
| Sioux City to Barcellona-Pozzo di Gotto | 5,405.99 mi (8,700.10 km) |
| Sioux City to Bareggio | 4,826.23 mi (7,767.07 km) |
| Sioux City to Barga | 4,944.94 mi (7,958.11 km) |
| Sioux City to Bari | 5,319.98 mi (8,561.68 km) |
| Sioux City to Barletta | 5,289.36 mi (8,512.39 km) |
| Sioux City to Baronissi | 5,261.85 mi (8,468.14 km) |
| Sioux City to Barrafranca | 5,405.47 mi (8,699.27 km) |
| Sioux City to Bassano del Grappa | 4,912.09 mi (7,905.24 km) |
| Sioux City to Battipaglia | 5,276.07 mi (8,491.01 km) |
| Sioux City to Beinasco | 4,794.58 mi (7,716.14 km) |
| Sioux City to Bellinzago Novarese | 4,808.13 mi (7,737.94 km) |
| Sioux City to Belluno | 4,911.86 mi (7,904.88 km) |
| Sioux City to Belmonte Mezzagno | 5,340.53 mi (8,594.75 km) |
| Sioux City to Belpasso | 5,425.02 mi (8,730.72 km) |
