| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| KGCK (GARDEN CITY RGNL) | airport | United States | 37.93 | -100.72 | 2891 | 0 | |
| KGCN (GRAND CANYON NATL PARK) | airport | United States | 35.95 | -112.15 | 6609 | 0 | |
| KGEG (SPOKANE INTL) | airport | United States | 47.62 | -117.53 | 2376 | 0 | |
| KGFK (GRAND FORKS INTL) | airport | United States | 47.95 | -97.18 | 845 | 0 | |
| KGFL (FLOYD BENNETT MEM) | airport | United States | 43.34 | -73.61 | 328 | 0 | |
| KGGG (EAST TEXAS RGNL) | airport | United States | 32.38 | -94.71 | 365 | 0 | |
| KGGW (WOKAL FLD GLASGOW INTL) | airport | United States | 48.21 | -106.61 | 2296 | 0 | |
| KGJT (WALKER FLD) | airport | United States | 39.12 | -108.53 | 4858 | 0 | |
| KGK (KOLIGANEK) | airport | United States | 59.73 | -157.26 | 269 | 0 | |
| KGLS (SCHOLES INTL AT GALVESTON) | airport | United States | 29.27 | -94.86 | 6 | 0 | |
| KGNV (GAINESVILLE RGNL) | airport | United States | 29.69 | -82.27 | 152 | 0 | |
| KGON (GROTON NEW LONDON) | airport | United States | 41.33 | -72.05 | 9 | 0 | |
| KGPT (GULFPORT BILOXI INTL) | airport | United States | 30.41 | -89.07 | 28 | 0 | |
| KGRB (AUSTIN STRAUBEL INTL) | airport | United States | 44.49 | -88.13 | 695 | 0 | |
| KGRF (GRAY AAF) | airport | United States | 47.08 | -122.58 | 302 | 0 | |
| KGRI (CENTRAL NEBRASKA RGNL) | airport | United States | 40.97 | -98.31 | 1847 | 0 | |
| KGRK (ROBERT GRAY AAF) | airport | United States | 31.07 | -97.83 | 1015 | 0 | |
| KGRR (GERALD R FORD INTL) | airport | United States | 42.88 | -85.52 | 794 | 0 | |
| KGSB (SEYMOUR JOHNSON AFB) | airport | United States | 35.34 | -77.96 | 110 | 0 | |
| KGSO (PIEDMONT TRIAD INTL) | airport | United States | 36.10 | -79.94 | 925 | 0 | |
| KGSP (GREENVILLE SPARTANBURG INTL) | airport | United States | 34.90 | -82.22 | 964 | 0 | |
| KGTB (WHEELER SACK AAF) | airport | United States | 44.06 | -75.72 | 690 | 0 | |
| KGTF (GREAT FALLS INTL) | airport | United States | 47.48 | -111.37 | 3677 | 0 | |
| KGTV-10 PARKING LOT | airport | United States | 32.72 | -117.10 | 200 | 0 | |
| KGUP (GALLUP MUNI) | airport | United States | 35.51 | -108.79 | 6472 | 0 | |
| KGUS (GRISSOM ARB) | airport | United States | 40.65 | -86.15 | 812 | 0 | |
| KGWO (GREENWOOD LEFLORE) | airport | United States | 33.49 | -90.08 | 162 | 0 | |
| KGX (GRAYLING) | airport | United States | 62.89 | -160.06 | 99 | 0 | |
| KGYY (GARY CHICAGO INTL) | airport | United States | 41.62 | -87.41 | 591 | 0 |