| Riviera Beach to Lovington (New Mexico) | 1,452.96 mi (2,338.31 km) |
| Riviera Beach to Lowell (Indiana) | 1,086.14 mi (1,747.98 km) |
| Riviera Beach to Lowell (Massachusetts) | 1,201.48 mi (1,933.60 km) |
| Riviera Beach to Lower Burrell (Pennsylvania) | 953.74 mi (1,534.90 km) |
| Riviera Beach to Lowes Island (Virginia) | 861.94 mi (1,387.15 km) |
| Riviera Beach to Lubbock (Texas) | 1,381.39 mi (2,223.13 km) |
| Riviera Beach to Lufkin (Texas) | 938.07 mi (1,509.68 km) |
| Riviera Beach to Luling (Louisiana) | 660.84 mi (1,063.51 km) |
| Riviera Beach to Lumberton (North Carolina) | 545.98 mi (878.66 km) |
| Riviera Beach to Lumberton (Texas) | 890.24 mi (1,432.71 km) |
| Riviera Beach to Lutz (Florida) | 173.10 mi (278.58 km) |
| Riviera Beach to Lynbrook (New York) | 1,026.13 mi (1,651.40 km) |
| Riviera Beach to Lynchburg (Virginia) | 735.51 mi (1,183.69 km) |
| Riviera Beach to Lynden (Washington) | 2,721.40 mi (4,379.66 km) |
| Riviera Beach to Lyndhurst (Ohio) | 1,021.33 mi (1,643.68 km) |
