| Mason City to Borgosatollo | 4,723.60 mi (7,601.90 km) |
| Mason City to Borgosesia | 4,639.56 mi (7,466.65 km) |
| Mason City to Boscoreale | 5,100.17 mi (8,207.94 km) |
| Mason City to Boscotrecase | 5,098.75 mi (8,205.65 km) |
| Mason City to Botticino Sera | 4,720.80 mi (7,597.39 km) |
| Mason City to Bovalino Marina | 5,290.71 mi (8,514.57 km) |
| Mason City to Boves | 4,672.76 mi (7,520.09 km) |
| Mason City to Boville Ernica | 5,019.86 mi (8,078.69 km) |
| Mason City to Bovisio Masciago | 4,676.92 mi (7,526.77 km) |
| Mason City to Bovolone | 4,766.72 mi (7,671.29 km) |
| Mason City to Bra | 4,668.20 mi (7,512.75 km) |
| Mason City to Bracciano | 4,950.20 mi (7,966.57 km) |
| Mason City to Brandizzo | 4,646.96 mi (7,478.56 km) |
| Mason City to Breganze | 4,762.28 mi (7,664.15 km) |
| Mason City to Brembate | 4,692.53 mi (7,551.89 km) |
