| Mountain Ash to Bay City (Texas) | 4,778.52 mi (7,690.29 km) |
| Mountain Ash to Bay Point (California) | 5,219.16 mi (8,399.43 km) |
| Mountain Ash to Bay Shore (New York) | 3,292.49 mi (5,298.75 km) |
| Mountain Ash to Bay Village (Ohio) | 3,611.67 mi (5,812.42 km) |
| Mountain Ash to Bayamón (Puerto Rico) | 4,069.82 mi (6,549.74 km) |
| Mountain Ash to Bayonet Point (Florida) | 4,265.43 mi (6,864.54 km) |
| Mountain Ash to Bayonne (New Jersey) | 3,330.82 mi (5,360.44 km) |
| Mountain Ash to Bayou Blue (Louisiana) | 4,531.31 mi (7,292.44 km) |
| Mountain Ash to Bayou Cane (Louisiana) | 4,534.98 mi (7,298.34 km) |
| Mountain Ash to Bayshore Gardens (Florida) | 4,305.61 mi (6,929.21 km) |
| Mountain Ash to Baytown (Texas) | 4,698.77 mi (7,561.94 km) |
| Mountain Ash to Beach Park (Illinois) | 3,801.29 mi (6,117.59 km) |
| Mountain Ash to Beachwood (New Jersey) | 3,366.16 mi (5,417.31 km) |
| Mountain Ash to Beachwood (Ohio) | 3,595.01 mi (5,785.61 km) |
| Mountain Ash to Beacon (New York) | 3,289.09 mi (5,293.27 km) |
