| Abbreviation | Definition |
|---|---|
| JLN | Joplin Regional Airport, Joplin, Missouri USA |
| JLO | Jesolo, Italy |
| JLP | Juan Les Pins, France |
| JLR | Jabalpur, India |
| JLU | Ljubljana, Slovinia |
| JMB | Jamba, Angola |
| JMC | Marin County Heliport ( Sausalito Heliport), Sausalito, California USA |
| JMH | Schaumburg, Illinois USA |
| JMK | Mikonos, Greece |
| JMM | Malmo Harbour Heliport, Malmo, Sweden |
| JMO | Jomsom, Nepal |
| JMS | Jamestown, North Dakota USA |
| JMU | Jiamusi, Mainland China |
| JMY | Mammy Y Airport, Freetown, Sierra Leone |
| JNA | Januaria, Minas Gerais, Brazil |
| JNB | Johannesburg, South Africa |
| JNI | Junin, Buenos Aires, Argentina |
| JNN | Nanortalik, Greenland |
| JNP | Newport Beach, California USA |
| JNS | Narsaq, Greenland |