| Merthyr Tudful to Lebanon (Indiana) | 3,854.71 mi (6,203.56 km) |
| Merthyr Tudful to Lebanon (Missouri) | 4,209.17 mi (6,774.01 km) |
| Merthyr Tudful to Lebanon (New Hampshire) | 3,130.02 mi (5,037.28 km) |
| Merthyr Tudful to Lebanon (Ohio) | 3,793.90 mi (6,105.69 km) |
| Merthyr Tudful to Lebanon (Oregon) | 4,873.86 mi (7,843.73 km) |
| Merthyr Tudful to Lebanon (Pennsylvania) | 3,438.30 mi (5,533.42 km) |
| Merthyr Tudful to Lebanon (Tennessee) | 4,030.51 mi (6,486.49 km) |
| Merthyr Tudful to Lee's Summit (Missouri) | 4,214.52 mi (6,782.62 km) |
| Merthyr Tudful to Leeds (Alabama) | 4,167.81 mi (6,707.44 km) |
| Merthyr Tudful to Leesburg (Florida) | 4,209.57 mi (6,774.65 km) |
| Merthyr Tudful to Leesburg (Virginia) | 3,539.07 mi (5,695.59 km) |
| Merthyr Tudful to Lehi (Utah) | 4,762.53 mi (7,664.55 km) |
| Merthyr Tudful to Lehigh Acres (Florida) | 4,306.59 mi (6,930.78 km) |
| Merthyr Tudful to Leisure City (Florida) | 4,312.09 mi (6,939.64 km) |
| Merthyr Tudful to Leland (North Carolina) | 3,783.67 mi (6,089.22 km) |
