| Mountain Ash to Bountiful (Utah) | 4,740.35 mi (7,628.85 km) |
| Mountain Ash to Bourbonnais (Illinois) | 3,858.92 mi (6,210.34 km) |
| Mountain Ash to Bowie (Maryland) | 3,513.52 mi (5,654.46 km) |
| Mountain Ash to Bowling Green (Kentucky) | 3,998.97 mi (6,435.73 km) |
| Mountain Ash to Bowling Green (Ohio) | 3,684.54 mi (5,929.69 km) |
| Mountain Ash to Box Elder (South Dakota) | 4,276.54 mi (6,882.42 km) |
| Mountain Ash to Boynton Beach (Florida) | 4,245.34 mi (6,832.22 km) |
| Mountain Ash to Bozeman (Montana) | 4,459.52 mi (7,176.91 km) |
| Mountain Ash to Bradenton (Florida) | 4,302.67 mi (6,924.48 km) |
| Mountain Ash to Bradfordville (Florida) | 4,217.55 mi (6,787.50 km) |
| Mountain Ash to Bradley (Illinois) | 3,858.50 mi (6,209.66 km) |
| Mountain Ash to Bradley Gardens (New Jersey) | 3,357.62 mi (5,403.57 km) |
| Mountain Ash to Brainerd (Minnesota) | 3,857.59 mi (6,208.19 km) |
| Mountain Ash to Brambleton (Virginia) | 3,544.93 mi (5,705.01 km) |
| Mountain Ash to Brandermill (Virginia) | 3,619.45 mi (5,824.95 km) |
