| Sioux City to Benisa | 4,769.20 mi (7,675.29 km) |
| Sioux City to Berga | 4,698.66 mi (7,561.77 km) |
| Sioux City to Berja | 4,719.47 mi (7,595.26 km) |
| Sioux City to Bermeo | 4,458.31 mi (7,174.95 km) |
| Sioux City to Berriozar | 4,525.05 mi (7,282.37 km) |
| Sioux City to Betanzos | 4,235.66 mi (6,816.63 km) |
| Sioux City to Betera | 4,710.08 mi (7,580.15 km) |
| Sioux City to Bilbao | 4,456.75 mi (7,172.45 km) |
| Sioux City to Binefar | 4,646.48 mi (7,477.78 km) |
| Sioux City to Binisalem | 4,843.32 mi (7,794.58 km) |
| Sioux City to Blanes | 4,755.10 mi (7,652.60 km) |
| Sioux City to Boadilla del Monte | 4,531.87 mi (7,293.34 km) |
| Sioux City to Boiro | 4,229.94 mi (6,807.43 km) |
| Sioux City to Bolanos de Calatrava | 4,601.02 mi (7,404.62 km) |
| Sioux City to Bollullos de la Mitacion | 4,558.79 mi (7,336.66 km) |
