| Mason City to Bitonto | 5,165.71 mi (8,313.41 km) |
| Mason City to Bitritto | 5,174.51 mi (8,327.56 km) |
| Mason City to Bollate | 4,678.62 mi (7,529.51 km) |
| Mason City to Bologna | 4,808.70 mi (7,738.86 km) |
| Mason City to Bolzano | 4,718.62 mi (7,593.88 km) |
| Mason City to Bomporto | 4,786.36 mi (7,702.91 km) |
| Mason City to Bonate di Sopra | 4,689.46 mi (7,546.96 km) |
| Mason City to Bondeno | 4,793.76 mi (7,714.82 km) |
| Mason City to Bordighera | 4,701.32 mi (7,566.04 km) |
| Mason City to Borgaro Torinese | 4,641.00 mi (7,468.97 km) |
| Mason City to Borgo a Buggiano | 4,813.62 mi (7,746.78 km) |
| Mason City to Borgo San Dalmazzo | 4,670.21 mi (7,515.98 km) |
| Mason City to Borgo San Lorenzo | 4,834.96 mi (7,781.12 km) |
| Mason City to Borgomanero | 4,647.77 mi (7,479.87 km) |
| Mason City to Borgoricco | 4,785.18 mi (7,701.00 km) |
