| Middletown to Lovington (New Mexico) | 1,148.06 mi (1,847.62 km) |
| Middletown to Lowell (Indiana) | 202.67 mi (326.17 km) |
| Middletown to Lowell (Massachusetts) | 712.29 mi (1,146.33 km) |
| Middletown to Lower Burrell (Pennsylvania) | 257.06 mi (413.69 km) |
| Middletown to Lowes Island (Virginia) | 376.35 mi (605.68 km) |
| Middletown to Lubbock (Texas) | 1,053.42 mi (1,695.31 km) |
| Middletown to Lufkin (Texas) | 811.32 mi (1,305.69 km) |
| Middletown to Luling (Louisiana) | 745.07 mi (1,199.07 km) |
| Middletown to Lumberton (North Carolina) | 447.29 mi (719.84 km) |
| Middletown to Lumberton (Texas) | 847.02 mi (1,363.14 km) |
| Middletown to Lutz (Florida) | 792.79 mi (1,275.87 km) |
| Middletown to Lynbrook (New York) | 570.46 mi (918.07 km) |
| Middletown to Lynchburg (Virginia) | 315.40 mi (507.58 km) |
| Middletown to Lynden (Washington) | 1,971.48 mi (3,172.79 km) |
| Middletown to Lyndhurst (Ohio) | 205.28 mi (330.37 km) |
