| Mason City to Bahce | 6,053.57 mi (9,742.27 km) |
| Mason City to Bahcesaray | 6,181.30 mi (9,947.84 km) |
| Mason City to Balikesir | 5,637.75 mi (9,073.08 km) |
| Mason City to Balya | 5,621.41 mi (9,046.79 km) |
| Mason City to Banaz | 5,748.73 mi (9,251.68 km) |
| Mason City to Bandirma | 5,602.15 mi (9,015.79 km) |
| Mason City to Bartin | 5,672.64 mi (9,129.24 km) |
| Mason City to Baskale | 6,219.06 mi (10,008.61 km) |
| Mason City to Baskil | 6,042.06 mi (9,723.76 km) |
| Mason City to Basmakci | 5,803.37 mi (9,339.61 km) |
| Mason City to Batman | 6,148.69 mi (9,895.37 km) |
| Mason City to Battalgazi | 6,037.10 mi (9,715.78 km) |
| Mason City to Bayat | 5,786.88 mi (9,313.08 km) |
| Mason City to Bayburt | 5,983.78 mi (9,629.96 km) |
| Mason City to Bayindir | 5,705.51 mi (9,182.14 km) |
