| Iowa City to Bradford | 3,969.38 mi (6,388.09 km) |
| Iowa City to Bradford-on-Avon | 4,030.67 mi (6,486.73 km) |
| Iowa City to Bradwell | 4,062.11 mi (6,537.33 km) |
| Iowa City to Braintree | 4,117.47 mi (6,626.43 km) |
| Iowa City to Bramhall | 3,968.49 mi (6,386.67 km) |
| Iowa City to Brandon | 4,100.58 mi (6,599.25 km) |
| Iowa City to Braunstone | 4,028.88 mi (6,483.86 km) |
| Iowa City to Bredbury | 3,968.34 mi (6,386.42 km) |
| Iowa City to Brentwood | 4,117.32 mi (6,626.18 km) |
| Iowa City to Bridgnorth | 3,985.49 mi (6,414.03 km) |
| Iowa City to Bridgwater | 4,009.66 mi (6,452.93 km) |
| Iowa City to Bridlington | 4,016.17 mi (6,463.41 km) |
| Iowa City to Bridport | 4,031.64 mi (6,488.30 km) |
| Iowa City to Brierley Hill | 3,998.25 mi (6,434.56 km) |
| Iowa City to Brighouse | 3,970.76 mi (6,390.32 km) |
