| Mason City to Brescia | 4,720.07 mi (7,596.22 km) |
| Mason City to Bressanone | 4,719.73 mi (7,595.67 km) |
| Mason City to Bresso | 4,681.83 mi (7,534.68 km) |
| Mason City to Brindisi | 5,235.49 mi (8,425.71 km) |
| Mason City to Broni | 4,705.57 mi (7,572.88 km) |
| Mason City to Bronte | 5,256.86 mi (8,460.10 km) |
| Mason City to Brugherio | 4,685.45 mi (7,540.50 km) |
| Mason City to Brugnera | 4,788.27 mi (7,705.98 km) |
| Mason City to Bruino | 4,639.84 mi (7,467.10 km) |
| Mason City to Brunico | 4,726.10 mi (7,605.92 km) |
| Mason City to Brusciano | 5,090.51 mi (8,192.38 km) |
| Mason City to Bucine | 4,865.03 mi (7,829.51 km) |
| Mason City to Budrio | 4,813.22 mi (7,746.13 km) |
| Mason City to Busca | 4,661.58 mi (7,502.09 km) |
| Mason City to Bussolengo | 4,746.53 mi (7,638.80 km) |
