| Rapid City to Lombard (Illinois) | 782.31 mi (1,259.01 km) |
| Rapid City to Lomita (California) | 1,075.17 mi (1,730.32 km) |
| Rapid City to Lompoc (California) | 1,124.04 mi (1,808.97 km) |
| Rapid City to London (Ohio) | 1,053.34 mi (1,695.19 km) |
| Rapid City to Lone Tree (Colorado) | 325.03 mi (523.08 km) |
| Rapid City to Long Beach (California) | 1,068.94 mi (1,720.29 km) |
| Rapid City to Long Beach (Mississippi) | 1,219.26 mi (1,962.21 km) |
| Rapid City to Long Beach (New York) | 1,520.27 mi (2,446.65 km) |
| Rapid City to Long Branch (New Jersey) | 1,510.78 mi (2,431.37 km) |
| Rapid City to Longmont (Colorado) | 286.35 mi (460.83 km) |
| Rapid City to Longview (Texas) | 919.39 mi (1,479.61 km) |
| Rapid City to Longview (Washington) | 970.74 mi (1,562.26 km) |
| Rapid City to Longwood (Florida) | 1,605.61 mi (2,583.98 km) |
| Rapid City to Lorain (Ohio) | 1,079.51 mi (1,737.30 km) |
| Rapid City to Lorton (Virginia) | 1,391.71 mi (2,239.74 km) |
