| Mountain Ash to Bear (Delaware) | 3,440.61 mi (5,537.12 km) |
| Mountain Ash to Beatrice (Nebraska) | 4,239.13 mi (6,822.22 km) |
| Mountain Ash to Beaufort (South Carolina) | 3,980.33 mi (6,405.73 km) |
| Mountain Ash to Beaumont (California) | 5,292.80 mi (8,517.94 km) |
| Mountain Ash to Beaumont (Texas) | 4,649.05 mi (7,481.92 km) |
| Mountain Ash to Beaver Dam (Wisconsin) | 3,791.12 mi (6,101.22 km) |
| Mountain Ash to Beavercreek (Ohio) | 3,775.39 mi (6,075.90 km) |
| Mountain Ash to Beaverton (Oregon) | 4,820.96 mi (7,758.59 km) |
| Mountain Ash to Beckley (West Virginia) | 3,748.32 mi (6,032.34 km) |
| Mountain Ash to Bedford (Indiana) | 3,912.12 mi (6,295.95 km) |
| Mountain Ash to Bedford (Ohio) | 3,600.03 mi (5,793.70 km) |
| Mountain Ash to Bedford (Texas) | 4,626.27 mi (7,445.27 km) |
| Mountain Ash to Bedford Heights (Ohio) | 3,598.27 mi (5,790.86 km) |
| Mountain Ash to Beech Grove (Indiana) | 3,856.45 mi (6,206.36 km) |
| Mountain Ash to Beeville (Texas) | 4,880.04 mi (7,853.67 km) |
