| Abbreviation | Definition |
|---|---|
| GLD | Goodland, Kansas USA |
| GLF | Golfito, Costa Rica |
| GLG | Glengyle, Queensland, Australia |
| GLGE | Greenville Sinoe, Liberia |
| GLH | Mid-Delta Regional Airport, Greenville, Mississippi USA |
| GLI | Glen Innes, New South Wales, Australia |
| GLK | Galcaio, Somalia |
| GLL | Gol, Norway |
| GLM | Glenormiston, Queensland, Australia |
| GLMR | Monrovia Spriggs Payne, Liberia |
| GLN | Goulimime, Morocco |
| GLNA | Grassfield Nimba-Lamco, Liberia |
| GLO | Gloucester/ Cheltenham, England, UK |
| GLP | Gulgubip, Papua New Guinea |
| GLQ | Glennallen, Alaska, USA |
| GLR | Gaylord, Michigan USA |
| GLRB | Monrovia Roberts Field, Liberia |
| GLS | Scholes Field, Galveston, Texas USA |
| GLSK | Sanniquellie, Liberia |
| GLST | Sasstown, Liberia |