| Philadelphia to Lovington (New Mexico) | 1,633.67 mi (2,629.14 km) |
| Philadelphia to Lowell (Indiana) | 649.55 mi (1,045.35 km) |
| Philadelphia to Lowell (Massachusetts) | 268.61 mi (432.28 km) |
| Philadelphia to Lower Burrell (Pennsylvania) | 244.58 mi (393.62 km) |
| Philadelphia to Lowes Island (Virginia) | 135.58 mi (218.19 km) |
| Philadelphia to Lubbock (Texas) | 1,539.20 mi (2,477.10 km) |
| Philadelphia to Lufkin (Texas) | 1,248.99 mi (2,010.06 km) |
| Philadelphia to Luling (Louisiana) | 1,106.42 mi (1,780.61 km) |
| Philadelphia to Lumberton (North Carolina) | 428.33 mi (689.32 km) |
| Philadelphia to Lumberton (Texas) | 1,266.87 mi (2,038.82 km) |
| Philadelphia to Lutz (Florida) | 919.79 mi (1,480.25 km) |
| Philadelphia to Lynbrook (New York) | 89.04 mi (143.30 km) |
| Philadelphia to Lynchburg (Virginia) | 283.33 mi (455.97 km) |
| Philadelphia to Lynden (Washington) | 2,371.85 mi (3,817.12 km) |
| Philadelphia to Lyndhurst (Ohio) | 348.61 mi (561.04 km) |
