| Iowa City to Bahce | 6,081.70 mi (9,787.55 km) |
| Iowa City to Bahcesaray | 6,219.90 mi (10,009.96 km) |
| Iowa City to Balikesir | 5,656.85 mi (9,103.82 km) |
| Iowa City to Balya | 5,640.28 mi (9,077.15 km) |
| Iowa City to Banaz | 5,769.09 mi (9,284.45 km) |
| Iowa City to Bandirma | 5,622.45 mi (9,048.46 km) |
| Iowa City to Bartin | 5,700.76 mi (9,174.49 km) |
| Iowa City to Baskale | 6,259.38 mi (10,073.50 km) |
| Iowa City to Baskil | 6,075.27 mi (9,777.20 km) |
| Iowa City to Basmakci | 5,822.84 mi (9,370.96 km) |
| Iowa City to Batman | 6,184.49 mi (9,952.98 km) |
| Iowa City to Battalgazi | 6,069.45 mi (9,767.84 km) |
| Iowa City to Bayat | 5,816.27 mi (9,360.39 km) |
| Iowa City to Bayburt | 6,021.12 mi (9,690.06 km) |
| Iowa City to Bayindir | 5,722.16 mi (9,208.93 km) |
