| Merthyr Tudful to Laguna Beach (California) | 5,336.74 mi (8,588.66 km) |
| Merthyr Tudful to Laguna Hills (California) | 5,332.06 mi (8,581.13 km) |
| Merthyr Tudful to Laguna Niguel (California) | 5,335.88 mi (8,587.28 km) |
| Merthyr Tudful to Laguna Woods (California) | 5,332.07 mi (8,581.14 km) |
| Merthyr Tudful to Lahaina (Hawaii) | 7,164.90 mi (11,530.79 km) |
| Merthyr Tudful to Lake Arbor (Maryland) | 3,518.05 mi (5,661.76 km) |
| Merthyr Tudful to Lake Barcroft (Virginia) | 3,534.15 mi (5,687.66 km) |
| Merthyr Tudful to Lake Butler (Florida) | 4,208.81 mi (6,773.43 km) |
| Merthyr Tudful to Lake Charles (Louisiana) | 4,604.14 mi (7,409.64 km) |
| Merthyr Tudful to Lake City (Florida) | 4,170.57 mi (6,711.88 km) |
| Merthyr Tudful to Lake Elmo (Minnesota) | 3,870.98 mi (6,229.75 km) |
| Merthyr Tudful to Lake Elsinore (California) | 5,314.67 mi (8,553.14 km) |
| Merthyr Tudful to Lake Forest (California) | 5,327.27 mi (8,573.41 km) |
| Merthyr Tudful to Lake Forest (Illinois) | 3,808.07 mi (6,128.50 km) |
| Merthyr Tudful to Lake Forest Park (Washington) | 4,674.90 mi (7,523.52 km) |
