| Mason City to Bridgeport (Connecticut) | 1,030.77 mi (1,658.86 km) |
| Mason City to Bridgeton (Missouri) | 335.46 mi (539.87 km) |
| Mason City to Bridgetown (Ohio) | 523.65 mi (842.73 km) |
| Mason City to Bridgeview (Illinois) | 291.61 mi (469.31 km) |
| Mason City to Brigham City (Utah) | 967.29 mi (1,556.70 km) |
| Mason City to Brighton (Colorado) | 637.80 mi (1,026.44 km) |
| Mason City to Bristol (Connecticut) | 1,035.83 mi (1,667.00 km) |
| Mason City to Bristol (Tennessee) | 738.44 mi (1,188.40 km) |
| Mason City to Bristol (Virginia) | 737.96 mi (1,187.63 km) |
| Mason City to Broadlands (Virginia) | 863.63 mi (1,389.88 km) |
| Mason City to Broadview Heights (Ohio) | 602.29 mi (969.30 km) |
| Mason City to Brock Hall (Maryland) | 905.83 mi (1,457.79 km) |
| Mason City to Brockton (Massachusetts) | 1,126.66 mi (1,813.18 km) |
| Mason City to Broken Arrow (Oklahoma) | 510.08 mi (820.90 km) |
| Mason City to Bronx (New York) | 1,003.02 mi (1,614.20 km) |
