| Ronkonkoma to Lovington (New Mexico) | 1,746.36 mi (2,810.49 km) |
| Ronkonkoma to Lowell (Indiana) | 744.79 mi (1,198.63 km) |
| Ronkonkoma to Lowell (Massachusetts) | 157.23 mi (253.03 km) |
| Ronkonkoma to Lower Burrell (Pennsylvania) | 345.47 mi (555.98 km) |
| Ronkonkoma to Lowes Island (Virginia) | 254.74 mi (409.96 km) |
| Ronkonkoma to Lubbock (Texas) | 1,651.77 mi (2,658.27 km) |
| Ronkonkoma to Lufkin (Texas) | 1,367.64 mi (2,201.01 km) |
| Ronkonkoma to Luling (Louisiana) | 1,224.93 mi (1,971.34 km) |
| Ronkonkoma to Lumberton (North Carolina) | 534.17 mi (859.67 km) |
| Ronkonkoma to Lumberton (Texas) | 1,385.96 mi (2,230.49 km) |
| Ronkonkoma to Lutz (Florida) | 1,022.06 mi (1,644.85 km) |
| Ronkonkoma to Lynbrook (New York) | 30.49 mi (49.07 km) |
| Ronkonkoma to Lynchburg (Virginia) | 401.20 mi (645.67 km) |
| Ronkonkoma to Lynden (Washington) | 2,434.66 mi (3,918.21 km) |
| Ronkonkoma to Lyndhurst (Ohio) | 437.87 mi (704.69 km) |
