| Mason City to Beacon (New York) | 986.87 mi (1,588.22 km) |
| Mason City to Bear (Delaware) | 938.40 mi (1,510.21 km) |
| Mason City to Beatrice (Nebraska) | 269.97 mi (434.47 km) |
| Mason City to Beaufort (South Carolina) | 1,002.42 mi (1,613.24 km) |
| Mason City to Beaumont (California) | 1,428.18 mi (2,298.43 km) |
| Mason City to Beaumont (Texas) | 904.12 mi (1,455.05 km) |
| Mason City to Beaver Dam (Wisconsin) | 220.73 mi (355.24 km) |
| Mason City to Beavercreek (Ohio) | 528.51 mi (850.55 km) |
| Mason City to Beaverton (Oregon) | 1,464.65 mi (2,357.12 km) |
| Mason City to Beckley (West Virginia) | 731.14 mi (1,176.65 km) |
| Mason City to Bedford (Indiana) | 458.22 mi (737.44 km) |
| Mason City to Bedford (Ohio) | 608.03 mi (978.53 km) |
| Mason City to Bedford (Texas) | 743.13 mi (1,195.95 km) |
| Mason City to Bedford Heights (Ohio) | 609.34 mi (980.64 km) |
| Mason City to Beech Grove (Indiana) | 437.95 mi (704.82 km) |
