| Ronkonkoma to Lombard (Illinois) | 775.04 mi (1,247.31 km) |
| Ronkonkoma to Lomita (California) | 2,502.42 mi (4,027.26 km) |
| Ronkonkoma to Lompoc (California) | 2,590.02 mi (4,168.23 km) |
| Ronkonkoma to London (Ohio) | 546.36 mi (879.27 km) |
| Ronkonkoma to Lone Tree (Colorado) | 1,669.30 mi (2,686.48 km) |
| Ronkonkoma to Long Beach (California) | 2,494.44 mi (4,014.41 km) |
| Ronkonkoma to Long Beach (Mississippi) | 1,151.31 mi (1,852.86 km) |
| Ronkonkoma to Long Beach (New York) | 32.02 mi (51.52 km) |
| Ronkonkoma to Long Branch (New Jersey) | 57.44 mi (92.44 km) |
| Ronkonkoma to Longmont (Colorado) | 1,671.53 mi (2,690.07 km) |
| Ronkonkoma to Longview (Texas) | 1,324.03 mi (2,130.82 km) |
| Ronkonkoma to Longview (Washington) | 2,484.42 mi (3,998.28 km) |
| Ronkonkoma to Longwood (Florida) | 956.59 mi (1,539.49 km) |
| Ronkonkoma to Lorain (Ohio) | 473.36 mi (761.80 km) |
| Ronkonkoma to Lorton (Virginia) | 261.50 mi (420.84 km) |
