| Rhondda to Miami Lakes (Florida) | 4,285.47 mi (6,896.79 km) |
| Rhondda to Miami Shores (Florida) | 4,281.65 mi (6,890.65 km) |
| Rhondda to Miami Springs (Florida) | 4,288.79 mi (6,902.14 km) |
| Rhondda to Miamisburg (Ohio) | 3,788.41 mi (6,096.86 km) |
| Rhondda to Michigan City (Indiana) | 3,796.10 mi (6,109.24 km) |
| Rhondda to Middle Island (New York) | 3,272.92 mi (5,267.26 km) |
| Rhondda to Middle River (Maryland) | 3,483.03 mi (5,605.40 km) |
| Rhondda to Middle Valley (Tennessee) | 4,033.70 mi (6,491.61 km) |
| Rhondda to Middleburg (Florida) | 4,146.36 mi (6,672.93 km) |
| Rhondda to Middleburg Heights (Ohio) | 3,612.28 mi (5,813.40 km) |
| Rhondda to Middlesex (New Jersey) | 3,350.33 mi (5,391.83 km) |
| Rhondda to Middleton (Wisconsin) | 3,833.82 mi (6,169.94 km) |
| Rhondda to Middletown (Connecticut) | 3,233.12 mi (5,203.20 km) |
| Rhondda to Middletown (Delaware) | 3,449.44 mi (5,551.34 km) |
| Rhondda to Middletown (New York) | 3,310.06 mi (5,327.02 km) |
