| Sioux City to Brescia | 4,868.09 mi (7,834.44 km) |
| Sioux City to Bressanone | 4,865.41 mi (7,830.13 km) |
| Sioux City to Bresso | 4,830.55 mi (7,774.03 km) |
| Sioux City to Brindisi | 5,383.06 mi (8,663.19 km) |
| Sioux City to Broni | 4,854.76 mi (7,812.98 km) |
| Sioux City to Bronte | 5,409.41 mi (8,705.61 km) |
| Sioux City to Brugherio | 4,834.07 mi (7,779.69 km) |
| Sioux City to Brugnera | 4,934.28 mi (7,940.95 km) |
| Sioux City to Bruino | 4,790.23 mi (7,709.13 km) |
| Sioux City to Brunico | 4,871.49 mi (7,839.91 km) |
| Sioux City to Brusciano | 5,240.43 mi (8,433.66 km) |
| Sioux City to Bucine | 5,014.32 mi (8,069.78 km) |
| Sioux City to Budrio | 4,961.43 mi (7,984.65 km) |
| Sioux City to Busca | 4,812.51 mi (7,744.98 km) |
| Sioux City to Bussolengo | 4,894.20 mi (7,876.46 km) |
