Enter city, state, or port code.
Name / Location   | State | Airport Code | Port Code |
| Lebanon Municipal Airport | New Hampshire | LEB | 0181 |
| Limestone | Maine | 0118 | |
| Little Rock | Arkansas | LIT | 2003 |
| Lockport | Illinois | 3901 | |
| Logan International Airport Boston | Massachusetts | BOS | 0417 |
| Long Beach | California | LGB | 2709 |
| Los Angeles | California | LAX | 2704 |
| Los Angeles International Airport | California | LAX | 2720 |
| Louisville Intl Airport | Kentucky | SDF | 4115 |
| Lubbock | Texas | LBB | 5503 |
| Lukeville | Arizona | 2602 | |
| Luling | Louisiana | 2009 | |
| Madawaska | Maine | 0109 | |
| Manistee | Michigan | MBL | 3815 |
| Mare Island Strait | California | 2829 | |
| Martinez | California | 2820 | |
| Mayberry Slough | California | 2828 | |
| Melbourne | Florida | MLB | 1885 |
| Memphis | Tennessee | MEM | 2006 |
| Miami | Florida | MIA | 5201 |
| Miami International Airport | Florida | MIA | 5206 |
| Michigan City Harbor | Indiana | MGC | 3905 |
| Midland International Airport | Texas | MAF | 5582 |
| Milwaukee | Wisconsin | MKE | 3701 |
| Minneapolis / St Paul | Minnesota | MSP | 3501 |
