| Iowa City to Bridgeport (Connecticut) | 948.66 mi (1,526.71 km) |
| Iowa City to Bridgeton (Missouri) | 207.89 mi (334.56 km) |
| Iowa City to Bridgetown (Ohio) | 401.62 mi (646.34 km) |
| Iowa City to Bridgeview (Illinois) | 192.17 mi (309.27 km) |
| Iowa City to Brigham City (Utah) | 1,057.84 mi (1,702.43 km) |
| Iowa City to Brighton (Colorado) | 702.67 mi (1,130.84 km) |
| Iowa City to Bristol (Connecticut) | 957.60 mi (1,541.10 km) |
| Iowa City to Bristol (Tennessee) | 610.58 mi (982.64 km) |
| Iowa City to Bristol (Virginia) | 610.41 mi (982.36 km) |
| Iowa City to Broadlands (Virginia) | 759.29 mi (1,221.96 km) |
| Iowa City to Broadview Heights (Ohio) | 510.19 mi (821.07 km) |
| Iowa City to Brock Hall (Maryland) | 802.01 mi (1,290.70 km) |
| Iowa City to Brockton (Massachusetts) | 1,052.96 mi (1,694.57 km) |
| Iowa City to Broken Arrow (Oklahoma) | 450.38 mi (724.82 km) |
| Iowa City to Bronx (New York) | 917.63 mi (1,476.79 km) |
