| Herndon to Lowell (Indiana) | 553.37 mi (890.56 km) |
| Herndon to Lowell (Massachusetts) | 405.87 mi (653.18 km) |
| Herndon to Lower Burrell (Pennsylvania) | 166.35 mi (267.72 km) |
| Herndon to Lowes Island (Virginia) | 5.64 mi (9.08 km) |
| Herndon to Lubbock (Texas) | 1,410.22 mi (2,269.52 km) |
| Herndon to Lufkin (Texas) | 1,110.45 mi (1,787.09 km) |
| Herndon to Luling (Louisiana) | 966.98 mi (1,556.20 km) |
| Herndon to Lumberton (North Carolina) | 313.06 mi (503.82 km) |
| Herndon to Lumberton (Texas) | 1,127.34 mi (1,814.28 km) |
| Herndon to Lutz (Florida) | 802.64 mi (1,291.73 km) |
| Herndon to Lynbrook (New York) | 228.93 mi (368.43 km) |
| Herndon to Lynchburg (Virginia) | 146.15 mi (235.21 km) |
| Herndon to Lynden (Washington) | 2,307.38 mi (3,713.37 km) |
| Herndon to Lyndhurst (Ohio) | 278.97 mi (448.96 km) |
| Herndon to Lyndon (Kentucky) | 445.33 mi (716.68 km) |
