| Rockford to Lovington (New Mexico) | 1,010.95 mi (1,626.97 km) |
| Rockford to Lowell (Indiana) | 107.94 mi (173.72 km) |
| Rockford to Lowell (Massachusetts) | 903.26 mi (1,453.66 km) |
| Rockford to Lower Burrell (Pennsylvania) | 497.82 mi (801.17 km) |
| Rockford to Lowes Island (Virginia) | 652.13 mi (1,049.50 km) |
| Rockford to Lubbock (Texas) | 919.82 mi (1,480.31 km) |
| Rockford to Lufkin (Texas) | 817.63 mi (1,315.85 km) |
| Rockford to Luling (Louisiana) | 856.90 mi (1,379.06 km) |
| Rockford to Lumberton (North Carolina) | 756.14 mi (1,216.89 km) |
| Rockford to Lumberton (Texas) | 877.00 mi (1,411.39 km) |
| Rockford to Lutz (Florida) | 1,043.82 mi (1,679.86 km) |
| Rockford to Lynbrook (New York) | 803.41 mi (1,292.97 km) |
| Rockford to Lynchburg (Virginia) | 621.59 mi (1,000.35 km) |
| Rockford to Lynden (Washington) | 1,663.89 mi (2,677.77 km) |
| Rockford to Lyndhurst (Ohio) | 392.69 mi (631.98 km) |
