| Mason City to Bathgate | 3,819.86 mi (6,147.47 km) |
| Mason City to Batley | 3,962.51 mi (6,377.05 km) |
| Mason City to Beaconsfield | 4,073.50 mi (6,555.66 km) |
| Mason City to Bearsden | 3,795.56 mi (6,108.37 km) |
| Mason City to Bebington | 3,926.26 mi (6,318.71 km) |
| Mason City to Beccles | 4,121.09 mi (6,632.25 km) |
| Mason City to Beckenham | 4,102.91 mi (6,602.99 km) |
| Mason City to Bedford | 4,060.13 mi (6,534.15 km) |
| Mason City to Bedlington | 3,916.02 mi (6,302.22 km) |
| Mason City to Bedwas | 3,979.15 mi (6,403.83 km) |
| Mason City to Bedworth | 4,011.57 mi (6,456.00 km) |
| Mason City to Beeston | 4,005.05 mi (6,445.50 km) |
| Mason City to Belfast | 3,780.80 mi (6,084.61 km) |
| Mason City to Belgrave | 4,017.79 mi (6,466.02 km) |
| Mason City to Bellshill | 3,809.41 mi (6,130.66 km) |
