| Rock Island to Lovington (New Mexico) | 915.65 mi (1,473.60 km) |
| Rock Island to Lowell (Indiana) | 164.44 mi (264.64 km) |
| Rock Island to Lowell (Massachusetts) | 989.28 mi (1,592.09 km) |
| Rock Island to Lower Burrell (Pennsylvania) | 569.46 mi (916.45 km) |
| Rock Island to Lowes Island (Virginia) | 716.62 mi (1,153.28 km) |
| Rock Island to Lubbock (Texas) | 824.59 mi (1,327.05 km) |
| Rock Island to Lufkin (Texas) | 737.84 mi (1,187.44 km) |
| Rock Island to Luling (Louisiana) | 799.45 mi (1,286.59 km) |
| Rock Island to Lumberton (North Carolina) | 785.68 mi (1,264.43 km) |
| Rock Island to Lumberton (Texas) | 800.71 mi (1,288.63 km) |
| Rock Island to Lutz (Florida) | 1,029.02 mi (1,656.05 km) |
| Rock Island to Lynbrook (New York) | 881.22 mi (1,418.19 km) |
| Rock Island to Lynchburg (Virginia) | 669.07 mi (1,076.76 km) |
| Rock Island to Lynden (Washington) | 1,621.31 mi (2,609.25 km) |
| Rock Island to Lyndhurst (Ohio) | 470.25 mi (756.80 km) |
