| IATA/ICAO Sign | Name of airline |
|---|---|
| LAN | LAN Airlines |
| DSM | LAN Argentina |
| LCO | LAN Cargo |
| LAT | Latcharter |
| LTC | Latcharter |
| LDA | Lauda Air |
| LDI | Lauda Air Italy |
| LAA | Libyan Arab Airlines |
| LNI | Lion Airways |
| LIL | Lithuanian Airlines |
| LVG | Livingston |
| LNX | London Executive Aviation |
| LOT | LOT Polish Airlines |
| TAS | Lotus Airlines |
| LTE | LTE International Airways |
| LTU | LTU International Airways |
| LGW | Luftfahrt Gesellschaft Walter |
| DLH | Lufthansa |
| GEC | Lufthansa Cargo |
| CLH | Lufthansa CityLine |
| LGL | Luxair |