| Iowa City to Bagnolet | 4,295.82 mi (6,913.46 km) |
| Iowa City to Bagnols-sur-Ceze | 4,564.91 mi (7,346.52 km) |
| Iowa City to Bailleul | 4,238.89 mi (6,821.84 km) |
| Iowa City to Balma | 4,459.37 mi (7,176.66 km) |
| Iowa City to Bar-le-Duc | 4,403.98 mi (7,087.52 km) |
| Iowa City to Barentin | 4,215.04 mi (6,783.46 km) |
| Iowa City to Basse-Goulaine | 4,203.75 mi (6,765.28 km) |
| Iowa City to Bastia | 4,819.07 mi (7,755.54 km) |
| Iowa City to Bayeux | 4,160.64 mi (6,695.90 km) |
| Iowa City to Bayonne | 4,339.68 mi (6,984.04 km) |
| Iowa City to Beaucaire | 4,580.18 mi (7,371.09 km) |
| Iowa City to Beauchamp | 4,281.72 mi (6,890.77 km) |
| Iowa City to Beaumont | 4,440.43 mi (7,146.18 km) |
| Iowa City to Beaumont-sur-Oise | 4,280.65 mi (6,889.05 km) |
| Iowa City to Beaune | 4,459.69 mi (7,177.18 km) |
