| Llantrisant to Los Alamos (New Mexico) | 4,817.61 mi (7,753.20 km) |
| Llantrisant to Los Altos (California) | 5,268.14 mi (8,478.26 km) |
| Llantrisant to Los Angeles (California) | 5,335.00 mi (8,585.85 km) |
| Llantrisant to Los Banos (California) | 5,246.49 mi (8,443.41 km) |
| Llantrisant to Los Gatos (California) | 5,271.70 mi (8,483.98 km) |
| Llantrisant to Los Lunas (New Mexico) | 4,892.71 mi (7,874.06 km) |
| Llantrisant to Los Osos (California) | 5,345.92 mi (8,603.43 km) |
| Llantrisant to Loudoun Valley Estates (Virginia) | 3,546.90 mi (5,708.19 km) |
| Llantrisant to Louisville (Colorado) | 4,564.12 mi (7,345.24 km) |
| Llantrisant to Louisville (Kentucky) | 3,914.70 mi (6,300.10 km) |
| Llantrisant to Lovejoy (Georgia) | 4,084.78 mi (6,573.82 km) |
| Llantrisant to Loveland (Colorado) | 4,538.31 mi (7,303.70 km) |
| Llantrisant to Loveland (Ohio) | 3,808.69 mi (6,129.49 km) |
| Llantrisant to Loves Park (Illinois) | 3,853.55 mi (6,201.69 km) |
| Llantrisant to Lovington (New Mexico) | 4,865.02 mi (7,829.50 km) |
