| Waltham to Lovington (New Mexico) | 1,859.92 mi (2,993.25 km) |
| Waltham to Lowell (Indiana) | 834.89 mi (1,343.63 km) |
| Waltham to Lowell (Massachusetts) | 17.74 mi (28.55 km) |
| Waltham to Lower Burrell (Pennsylvania) | 455.70 mi (733.38 km) |
| Waltham to Lowes Island (Virginia) | 394.41 mi (634.74 km) |
| Waltham to Lubbock (Texas) | 1,765.29 mi (2,840.97 km) |
| Waltham to Lufkin (Texas) | 1,499.29 mi (2,412.87 km) |
| Waltham to Luling (Louisiana) | 1,365.99 mi (2,198.35 km) |
| Waltham to Lumberton (North Carolina) | 680.57 mi (1,095.27 km) |
| Waltham to Lumberton (Texas) | 1,520.93 mi (2,447.70 km) |
| Waltham to Lutz (Florida) | 1,167.58 mi (1,879.04 km) |
| Waltham to Lynbrook (New York) | 173.57 mi (279.33 km) |
| Waltham to Lynchburg (Virginia) | 543.95 mi (875.40 km) |
| Waltham to Lynden (Washington) | 2,465.45 mi (3,967.76 km) |
| Waltham to Lyndhurst (Ohio) | 529.79 mi (852.61 km) |
