| Herndon to Largo (Florida) | 824.46 mi (1,326.85 km) |
| Herndon to Largo (Maryland) | 30.62 mi (49.28 km) |
| Herndon to Larkspur (California) | 2,418.27 mi (3,891.83 km) |
| Herndon to Las Cruces (New Mexico) | 1,705.16 mi (2,744.18 km) |
| Herndon to Las Vegas (Nevada) | 2,067.20 mi (3,326.83 km) |
| Herndon to Las Vegas (New Mexico) | 1,541.57 mi (2,480.91 km) |
| Herndon to Latham (New York) | 322.54 mi (519.07 km) |
| Herndon to Lathrop (California) | 2,356.89 mi (3,793.04 km) |
| Herndon to Lauderdale Lakes (Florida) | 899.43 mi (1,447.50 km) |
| Herndon to Lauderhill (Florida) | 900.19 mi (1,448.72 km) |
| Herndon to Laurel (Florida) | 867.32 mi (1,395.82 km) |
| Herndon to Laurel (Maryland) | 29.45 mi (47.39 km) |
| Herndon to Laurel (Mississippi) | 830.59 mi (1,336.71 km) |
| Herndon to Laurel (Virginia) | 92.29 mi (148.52 km) |
| Herndon to Laurinburg (North Carolina) | 312.95 mi (503.65 km) |
