| Merthyr Tudful to Lawndale (California) | 5,337.01 mi (8,589.09 km) |
| Merthyr Tudful to Lawrence (Indiana) | 3,844.03 mi (6,186.37 km) |
| Merthyr Tudful to Lawrence (Kansas) | 4,245.94 mi (6,833.17 km) |
| Merthyr Tudful to Lawrence (Massachusetts) | 3,123.37 mi (5,026.58 km) |
| Merthyr Tudful to Lawrenceburg (Kentucky) | 3,885.99 mi (6,253.89 km) |
| Merthyr Tudful to Lawrenceburg (Tennessee) | 4,116.05 mi (6,624.14 km) |
| Merthyr Tudful to Lawrenceville (Georgia) | 4,042.82 mi (6,506.30 km) |
| Merthyr Tudful to Lawton (Oklahoma) | 4,583.66 mi (7,376.69 km) |
| Merthyr Tudful to Layton (Utah) | 4,729.89 mi (7,612.03 km) |
| Merthyr Tudful to Le Mars (Iowa) | 4,094.34 mi (6,589.20 km) |
| Merthyr Tudful to League City (Texas) | 4,716.96 mi (7,591.21 km) |
| Merthyr Tudful to Lealman (Florida) | 4,290.03 mi (6,904.14 km) |
| Merthyr Tudful to Leander (Texas) | 4,770.18 mi (7,676.86 km) |
| Merthyr Tudful to Leavenworth (Kansas) | 4,215.25 mi (6,783.78 km) |
| Merthyr Tudful to Leawood (Kansas) | 4,224.28 mi (6,798.32 km) |
