| Rapid City to Lovington (New Mexico) | 771.02 mi (1,240.84 km) |
| Rapid City to Lowell (Indiana) | 823.82 mi (1,325.81 km) |
| Rapid City to Lowell (Massachusetts) | 1,595.56 mi (2,567.81 km) |
| Rapid City to Lower Burrell (Pennsylvania) | 1,220.31 mi (1,963.89 km) |
| Rapid City to Lowes Island (Virginia) | 1,375.42 mi (2,213.53 km) |
| Rapid City to Lubbock (Texas) | 729.39 mi (1,173.85 km) |
| Rapid City to Lufkin (Texas) | 994.47 mi (1,600.45 km) |
| Rapid City to Luling (Louisiana) | 1,206.35 mi (1,941.44 km) |
| Rapid City to Lumberton (North Carolina) | 1,440.81 mi (2,318.75 km) |
| Rapid City to Lumberton (Texas) | 1,074.25 mi (1,728.85 km) |
| Rapid City to Lutz (Florida) | 1,590.21 mi (2,559.19 km) |
| Rapid City to Lynbrook (New York) | 1,518.32 mi (2,443.50 km) |
| Rapid City to Lynchburg (Virginia) | 1,333.94 mi (2,146.77 km) |
| Rapid City to Lynden (Washington) | 971.49 mi (1,563.46 km) |
| Rapid City to Lyndhurst (Ohio) | 1,112.33 mi (1,790.11 km) |
