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- Fort Cavazos (GRK)
- Fort Dodge (FOD)
- Fort Huachuca / Sierra Vista (FHU)
- Fort Indiantown Gap(Annville) (MUI)
- Fort Irwin/Barstow (BYS)
- Fort Knox (FTK)
- Fort Lauderdale (FLL)
- Fort Lauderdale (FXE)
- Fort Leonard Wood (TBN)
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- Fort Polk (POE)
- Fort Riley (Junction City) (FRI)
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- Galena (GAL)
- Gallup (GUP)
- Galveston (GLS)
- Gambell (GAM)
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- Gary (GYY)
- Gillette (GCC)
- Glasgow (GGW)
- Glendale (LUF)
- Glendive (GDV)
- Glens Falls (GFL)
- Goldsboro (GSB)
- Goodland (GLD)
- Grand Canyon - Tusayan (GCN)
- Grand Forks (GFK)
- Grand Forks (RDR)
- Grand Island (GRI)
- Grand Junction (GJT)
- Grand Rapids (GRR)
- Great Falls (GTF)
- Green Bay (GRB)
- Greensboro (GSO)
- Greenville (GLH)
- Greenville (GMU)
- Greenville (PGV)
- Greenville/Greer/Spartanburg (GSP)
- Greenwood (GWO)
- Groton (GON)
- Gulfport (GPT)
- Gulkana (GKN)
- Gunnison (GUC)
- Gustavus (GST)
- Guymon (GUY)
- Gwinn (MQT)
- Hagerstown (HGR)
- Hailey (SUN)
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- Hampton (LFI)
- Hana (HNM)
- Hancock (CMX)
- Harlingen (HRL)
- Harrisburg (MDT)
- Harrison (HRO)
- Hartford (BDL)
- Hartford (HFD)
- Hattiesburg (HBG)
- Havre (HVR)
- Hawthorne (HHR)
- Hayden (HDN)
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- Hayward (HYR)
- Helena (HLN)
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- Hilo (ITO)
- Hilton Head Island (HHH)
- Hobart (HBR)
- Hobbs (HOB)
- Hollywood (HWO)
- Holy Cross (HCR)
- Homer (HOM)
- Homestead (HST)