| Thornton to Los Alamos (New Mexico) | 4,787.10 mi (7,704.09 km) |
| Thornton to Los Altos (California) | 5,204.94 mi (8,376.54 km) |
| Thornton to Los Angeles (California) | 5,283.97 mi (8,503.73 km) |
| Thornton to Los Banos (California) | 5,186.11 mi (8,346.23 km) |
| Thornton to Los Gatos (California) | 5,208.97 mi (8,383.02 km) |
| Thornton to Los Lunas (New Mexico) | 4,863.31 mi (7,826.74 km) |
| Thornton to Los Osos (California) | 5,288.30 mi (8,510.70 km) |
| Thornton to Loudoun Valley Estates (Virginia) | 3,564.43 mi (5,736.40 km) |
| Thornton to Louisville (Colorado) | 4,527.67 mi (7,286.57 km) |
| Thornton to Louisville (Kentucky) | 3,918.79 mi (6,306.68 km) |
| Thornton to Lovejoy (Georgia) | 4,103.05 mi (6,603.21 km) |
| Thornton to Loveland (Colorado) | 4,501.09 mi (7,243.81 km) |
| Thornton to Loveland (Ohio) | 3,812.56 mi (6,135.72 km) |
| Thornton to Loves Park (Illinois) | 3,840.77 mi (6,181.12 km) |
| Thornton to Lovington (New Mexico) | 4,846.16 mi (7,799.13 km) |
