| HAA | Hasvik Airport | Hasvik | NO |
| HAB | Marion County Airport | Hamilton | US |
| HAC | Hachijojima Airport | Hachijojima | JP |
| HAD | Halmstad Airport | Halmstad | SE |
| HAE | Havasupai Airport | Havasupai | US |
| HAF | Half Moon Airport | Half Moon | US |
| HAG | Metropolitan Area | The Hague | NL |
| HAH | Prince Said Ibrahim Airport | Moroni | KM |
| HAI | Dr. Haines Airport | Three Rivers | US |
| HAJ | Hannover Airport | Hannover | DE |
| HAK | Meilan International Airport | Haikou | CN |
| HAL | Halali Airport | Halali | NA |
| HAM | Hamburg Airport | Hamburg | DE |
| HAN | Noi Bai International Airport | Hanoi | VN |
| HAO | Hamilton Airport | Hamilton | US |
| HAP | Long Island/Happy Bay Heliport | Long Island/Happy Bay | AU |
| HAQ | Hanimaadhoo Island Airport | Hanimaadhoo Island | MV |
| HAR | Harrisburg Skyport | Harrisburg | US |
| HAS | Hail Airport | Hail | SA |
| HAT | Heathlands Airport | Heathlands | AU |
| HAU | Haugesund Airport | Haugesund | NO |
| HAV | Jose Marti International Airport | Havana | CU |
| HAW | Haverfordwest Airport | Haverfordwest | GB |
| HAX | Hatbox Field | Muskogee | US |
| HAY | Haycock Airport | Haycock | US |
| HAZ | Hatzfeldthaven Airport | Hatzfeldthaven | PG |
| HBA | Hobart International Airport | Hobart | AU |
| HBB | Industrial Airpark | Hobbs | US |
| HBC | Hanus Bay Airport | Hanus Bay | US |
| HBD | Habi Airport | Habi | PG |
| HBE | Borg el Arab Airport | Alexandria | EG |
| HBG | Bobby L. Chain Municipal Airport | Hattiesburg | US |
| HBH | Hobart Bay Airport | Hobart Bay | US |
| HBI | Harbour Island Airport | Harbour Island | BS |
| HBK | Municipal Airport | Holbrook | US |
| HBO | Humboldt Municipal Airport | Humboldt | US |
| HBR | Hobart Airport | Hobart | US |
| HBT | Hambantota SPB | Hambantota | LK |
| HBU | Bulgan (Khovd) Airport | Bulgan | MN |
| HBX | Hubli Airport | Hubli | IN |
| HBZ | Bus Station | Hannover | DE |
| HCA | Howard County Airport | Big Spring | US |
| HCB | Shoal Cove Airport | Shoal Cove | US |
| HCC | Columbia County Airport | Hudson | US |
| HCM | Eli Airport | Eil | SO |
| HCN | Hengchun Airport | Hengchun | TW |
| HCQ | Halls Creek Airport | Halls Creek | AU |
| HCR | Holy Cross Airport | Holy Cross | US |
| HCW | Cheraw Airport | Cheraw | US |
| HDA | Hidden Falls Airport | Hidden Falls | US |
| HDB | Army Air Field | Heidelberg | DE |
| HDD | Hyderabad Airport | Hyderabad | PK |
| HDE | Brewster Field | Holdrege | US |
| HDF | Heringsdorf Airport | Heringsdorf | DE |
| HDG | Handan Airport | Handan | CN |
| HDH | Dillingham Airfield | Oahu | US |
| HDM | Hamadan Airport | Hamadan | IR |
| HDN | Yampa Valley Airport | Hayden | US |
| HDR | Havadarya Airport | Havadarya | IR |
| HDS | AFB | Hoedspruit | ZA |
| HDY | Hat Yai International Airport | Hat Yai | TH |
| HEA | Herat Airport | Herat | AF |
| HEB | Hinthada Airport | Hinthada | MM |
| HEC | Central Railway Station | Helsinki | FI |
| HED | Herendeen Airport | Herendeen | US |
| HEE | Thompson-Robbins Airport | Helena | US |
| HEH | Heho Airport | Heho | MM |
| HEI | Heide-Buesum Airport | Heide-Buesum | DE |
| HEK | Heihe Airport | Heihe | CN |
| HEL | Helsinki-Vantaa Airport | Helsinki | FI |
| HEM | Helsinke-Malmi Airport | Helsinki | FI |
| HEN | Hernesaari Heliport | Helsinki | FI |
| HEO | Haelogo Airport | Haelogo | PG |
| HER | Nikos Kazantzakis Airport | Irakleion | GR |
| HES | State Airport | Hermiston | US |
| HET | Baita International Airport | Hohhot | CN |
| HEV | Railway Station | Huelva | ES |
| HEX | Herrera Airport | Santo Domingo | DO |
| HEY | Hanchey Army Heliport | Ozark | US |
| HEZ | Hardy-Anders Airport | Natchez | US |
| HFA | Haifa Airport | Haifa | IL |
| HFD | Brainard Airport | Hartford | US |
| HFE | Xinqiao International Airport | Hefei | CN |
| HFF | Mackall Army Air Field | Hoffman | US |
| HFN | Hofn Airport | Hornafjordur | IS |
| HFS | Hagfors Airport | Hagfors | SE |
| HFT | Hammerfest Airport | Hammerfest | NO |
| HGA | Egal International Airport | Hargeisa | SO |
| HGD | Hughenden Airport | Hughenden | AU |
| HGH | Xiaoshan Intl Airport | Hangzhou | CN |
| HGI | Higlieg Airport | Higlieg | SD |
| HGL | Duene | Helgoland | DE |
| HGN | Mae Hong Son Airport | Mae Hong Son | TH |
| HGO | Korhogo Airport | Korhogo | CI |
| HGR | Wash. County Regional Airport | Hagerstown | US |
| HGS | Hastings Airport | Freetown | SL |
| HGT | Hunter Army Air Field | Jolon | US |
| HGU | Kagamuga Airport | Mount Hagen | PG |
| HGZ | Hogatza Airport | Hogatza | US |
| HHE | Air Base | Hachinohe | JP |
| HHH | Hilton Head Airport | Hilton Head | US |
| HHI | Wheeler Air Force Base | Wahiawa | US |
| HHK | CZ Bus Station | Hong Kong | HK |
| HHN | Hahn Airport | Frankfurt | DE |
| HHP | Sheung Wan Heliport | Hong Kong | HK |
| HHQ | Hua Hin Airport | Hua Hin | TH |
| HHR | Hawthorne Airport | Hawthorne | US |
| HHS | CZ Bus Station | Zhongshan | CN |
| HHZ | Hikueru Airport | Hikueru | PF |
| HIA | Lianshui Airport | Huai'an | CN |
| HIB | Chisholm Airport | Hibbing | US |
| HID | Horn Island Airport | Horn Island | AU |
| HIE | Whitefield Regional Airport | Whitefield | US |
| HIF | Hill Air Force Base | Ogden | US |
| HIG | Highbury Airport | Highbury | AU |
| HIH | Hook Island Heliport | Hook Island | AU |
| HII | Lake Havasu City Municipal Airport | Lake Havasu City | US |
| HIJ | Hiroshima Airport | Hiroshima | JP |
| HIK | Hickam Air Force Base | Honolulu | US |
| HIL | Shilabo Airport | Shilabo | ET |
| HIM | Minneriya Airport | Hingurakgoda | LK |
| HIN | Sacheon Airport | Jinju | KR |
| HIO | Portland Airport | Hillsboro | US |
| HIP | Headingly Airport | Headingly | AU |
| HIR | Honiara International Airport | Honiara | SB |
| HIS | Hayman Island Heliport | Hayman Island | AU |
| HIT | Haivaro Airport | Haivaro | PG |
| HIW | Hiroshimanishi Airport | Hiroshima | JP |
| HJJ | Zhijiang Airport | Huaihua | CN |
| HJR | Khajuraho Airport | Khajuraho | IN |
| HJT | Khujirt Airport | Khujirt | MN |
| HKA | Blytheville Municipal Airport | Blytheville | US |
| HKB | Healy Lake Airport | Healy Lake | US |
| HKD | Hakodate Airport | Hakodate | JP |
| HKG | Hong Kong International Airport | Hong Kong | HK |
| HKK | Hokitika Airport | Hokitika | NZ |
| HKN | Hoskins Airport | Hoskins | PG |
| HKS | Hawkins Field | Jackson | US |
| HKT | Phuket International Airport | Phuket | TH |
| HKV | Malevo Airport | Haskovo | BG |
| HKY | Hickory Airport | Hickory | US |
| HLA | Lanseria Airport | Johannesburg | ZA |
| HLB | Hillenbrand Airport | Batesville | US |
| HLC | Hill City Airport | Hill City | US |
| HLD | Dongshan Airport | Hailar | CN |
| HLF | Hultsfred Airport | Hultsfred | SE |
| HLG | Ohio County Airport | Wheeling | US |
| HLH | Ulanhot Airport | Ulanhot | CN |
| HLI | Hollister Airport | Hollister | US |
| HLL | Hillside Airport | Hillside | AU |
| HLM | Park Township Airport | Holland | US |
| HLN | Helena Airport | Helena | US |
| HLP | Halim Perdanakusuma Airport | Jakarta | ID |
| HLR | Fort Hood Army Air Field | Killeen | US |
| HLS | St Helens Airport | St Helens | AU |
| HLT | Hamilton Airport | Hamilton | AU |
| HLV | Helenvale Airport | Helenvale | AU |
| HLW | Hluhluwe Airport | Hluhluwe | ZA |
| HLY | Railway Station | Holyhead | GB |
| HLZ | Hamilton International Airport | Hamilton | NZ |
| HMA | Khanty-Mansiysk | Khanty-Mansiysk | RU |
| HMB | Sohag Intl Airport | Sohag | EG |
| HME | Oued Irara Airport | Hassi Messaoud | DZ |
| HMG | Hermannsburg Airport | Hermannsburg | AU |
| HMI | Hami Airport | Hami | CN |
| HMJ | Khmelnytskyi Int'l Airport | Khmelnytskyi | UA |
| HMN | Holloman Air Force Base | Alamogordo | US |
| HMO | Gen Pesqueira Garcia Airport | Hermosillo | MX |
| HMR | Hamar Airport | Hamar | NO |
| HMS | Homeshore Airport | Homeshore | US |
| HMT | Ryan Field | Hemet | US |
| HMV | Hemavan Airport | Hemavan | SE |
| HNA | Hanamaki Airport | Hanamaki | JP |
| HNB | Huntingburg Municipal Airport | Huntingburg | US |
| HNC | Hatteras Airport | Hatteras | US |
| HND | Tokyo International (Haneda) Airport | Tokyo | JP |
| HNE | Tabneta Pass Airport | Tabneta Pass Lodge | US |
| HNH | Hoonah Airport | Hoonah | US |
| HNI | Heiweni Airport | Heiweni | PG |
| HNL | Honolulu International Airport | Honolulu | US |
| HNM | Hana Airport | Hana | US |
| HNN | Honinabi Airport | Honinabi | PG |
| HNO | Off-Line Point | Herceg-Novi | ME |
| HNS | Haines Municipal Airport | Haines | US |
| HNX | Hanna Airport | Hanna | US |
| HNY | Bajialing Airport | Hengyang | CN |
| HNZ | CZ Bus Station | Shenzhen | CN |
| HOA | Hola Airport | Hola | KE |
| HOB | Lea County Airport | Hobbs | US |
| HOC | Komako Airport | Komako | PG |
| HOD | Hodeidah International Airport | Hodeidah | YE |
| HOE | Houeisay Airport | Houeisay | LA |
| HOF | Al-Asha Airport | Hofuf | SA |
| HOG | Frank Pais Airport | Holguin | CU |
| HOH | Hohenems/Dornbirn Airport | Hohenems/Dornbirn | AT |
| HOI | Hao Airport | Hao | PF |
| HOK | Hooker Creek Airport | Lajamanu | AU |
| HOL | Holikachu Airport | Holikachu | US |
| HOM | Homer Airport | Homer | US |
| HON | Howes Airport | Huron | US |
| HOO | Nhon Co Airport | Quang Duc | VN |
| HOP | Campbell Army Air Field | Hopkinsville | US |
| HOQ | Plauen | Hof | DE |
| HOR | Horta Airport | Horta (Azores) | PT |
| HOS | Oscar Reguera Airport | Chos Malal | AR |
| HOT | Memorial Field | Hot Springs | US |
| HOU | Hobby Airport | Houston | US |
| HOV | Hovden Airport | Orsta-Volda | NO |
| HOW | Howard AFB | Fort Kobbe | PA |
| HOX | Homalin Airport | Homalin | MM |
| HOY | Longhope Airport | Hoy | GB |
| HPA | Lifuka Airport | Ha'apai | TO |
| HPB | Hooper Bay Airport | Hooper Bay | US |
| HPE | Hopevale Airport | Hopevale | AU |
| HPG | Hongping Airport | Shennongjia | CN |
| HPH | Cat Bi International Airport | Haiphong | VN |
| HPN | Westchester County Airport | Westchester County | US |
| HPT | Hampton Municipal Airport | Hampton | US |
| HPV | Princeville Airport | Kauai Island | US |
| HPY | Baytown Airport | Baytown | US |
| HQM | Bowerman Airport | Hoquiam | US |
| HRB | Taiping Intl Airport | Harbin | CN |
| HRC | Sary Su Airport | Zhayrem | KZ |
| HRD | Off-Line Point | Harstad | NO |
| HRE | Harare International Airport | Harare | ZW |
| HRG | Hurghada International Airport | Hurghada | EG |
| HRI | Mattala Rajapaksa Int'l Airpot | Hambantota | LK |
| HRK | Osnova International Airport | Kharkiv | UA |
| HRL | Valley International Airport | Harlingen | US |
| HRM | Tilrempt Airport | Hassi R'Mel | DZ |
| HRN | Heron Island Heliport | Heron Island | AU |
| HRO | Boone County Airport | Harrison | US |
| HRR | Herrera Airport | Herrera | CO |
| HRS | Harrismith Airport | Harrismith | ZA |
| HRT | Linton-on-Ouse RAF | Harrogate | GB |
| HRY | Henbury Airport | Henbury | AU |
| HRZ | Horizontina Airport | Horizontina | BR |
| HSB | Raleigh Airport | Harrisburg | US |
| HSC | Guitou Airport | Shaoguan | CN |
| HSG | Saga Airport | Saga | JP |
| HSH | Henderson Executive Airport | Las Vegas | US |
| HSI | Hastings Airport | Hastings | US |
| HSK | Pirineos Airport | Huesca | ES |
| HSL | Huslia Airport | Huslia | US |
| HSM | Horsham Airport | Horsham | AU |
| HSN | Putuoshan Airport | Zhoushan | CN |
| HSP | Ingalls Field | Hot Springs | US |
| HSS | Hisar Airport | Hisar | IN |
| HST | Homestead Air Force Base | Homestead | US |
| HSV | Huntsville International Airport | Huntsville | US |
| HSZ | Hsinchu Airport | Hsinchu | TW |
| HTA | Kadala Airport | Chita | RU |
| HTB | Terre-de-Bas Airport | Terre-de-Bas | GP |
| HTG | Khatanga Airport | Khatanga | RU |
| HTH | Hawthorne Airport | Hawthorne | US |
| HTI | Great Barrier Reef Airport | Hamilton Island | AU |
| HTL | Roscommon County Airport | Houghton | US |
| HTM | Khatgal Airport | Khatgal | MN |
| HTN | Hotan Airport | Hotan | CN |
| HTO | East Hampton Airport | East Hampton | US |
| HTR | Hateruma Airport | Hateruma | JP |
| HTS | Tri-State/Milton Airport | Huntington | US |
| HTU | Hopetown Airport | Hopetown | AU |
| HTV | Huntsville Airport | Huntsville | US |
| HTW | Huntington County Airport | Chesapeake | US |
| HTY | Hatay Airport | Hatay | TR |
| HTZ | Hato Corozal Airport | Hato Corozal | CO |
| HUA | Redstone Army Air Field | Huntsville | US |
| HUB | Humbert River Airport | Humbert River | AU |
| HUC | Humacao Airport | Humacao | PR |
| HUD | Humboldt Airport | Humboldt | US |
| HUE | Humera Airport | Humera | ET |
| HUF | Hulman Field | Terre Haute | US |
| HUG | Huehuetenango Airport | Huehuetenango | GT |
| HUH | Fare Airport | Huahine | PF |
| HUI | Phu Bai International Airport | Hue | VN |
| HUJ | Hugo Airport | Hugo | US |
| HUK | Hukuntsi Airport | Hukuntsi | BW |
| HUL | Houlton International Airport | Houlton | US |
| HUM | Terrebonne Airport | Houma | US |
| HUN | Hualien Airport | Hualien | TW |
| HUQ | Hon Airport | Hon | LY |
| HUS | Hughes Municipal Airport | Hughes | US |
| HUT | Hutchinson Airport | Hutchinson | US |
| HUU | Huanuco Airport | Huanuco | PE |
| HUV | Hudiksvall Airport | Hudiksvall | SE |
| HUW | Humaita Airport | Humaita | BR |
| HUX | Huatulco Airport | Huatulco | MX |
| HUY | Humberside Airport | Humberside | GB |
| HUZ | Huizhou Airport | Huizhou | CN |
| HVA | Analalava Airport | Analalava | MG |
| HVB | Hervey Bay Airport | Hervey Bay | AU |
| HVD | Khovd Airport | Khovd | MN |
| HVE | Hanksville Intermediate Airport | Hanksville | US |
| HVG | Valan Airport | Honningsvag | NO |
| HVK | Holmavik Airport | Holmavik | IS |
| HVN | New Haven Airport | New Haven | US |
| HVR | Havre City County Airport | Havre | US |
| HVS | Hartsville Municipal Airport | Hartsville | US |
| HVT | Tikkurila Railway Station | Helsinki | FI |
| HVZ | MA Bus Station | Heviz | HU |
| HWA | Hawabango Airport | Hawabango | PG |
| HWD | Hayward Air Terminal | Hayward | US |
| HWI | Hawk Inlet Sea Plane Base | Hawk Inlet | US |
| HWK | Hawker Airport | Hawker | AU |
| HWN | Hwange National Park Airport | Hwange National Park | ZW |
| HWO | North Perry Airport | Hollywood | US |
| HXD | Delingha Airport | Delingha | CN |
| HXX | Hay Airport | Hay | AU |
| HYA | Barnstable Airport | Hyannis | US |
| HYC | Air Parker/Booker Airport | High Wycombe | GB |
| HYD | Rajiv Gandhi International Airport | Hyderabad | IN |
| HYF | Hayfield Airport | Hayfield | PG |
| HYG | Hydaburg Sea Plane Base | Hydaburg | US |
| HYL | Hollis Sea Plane Base | Hollis | US |
| HYN | Luqiao Airport | Taizhou | CN |
| HYR | Hayward Municipal Airport | Hayward | US |
| HYS | Hays Municipal Airport | Hays | US |
| HYV | Hyvinkaa Airport | Hyvinkaa | FI |
| HZB | Merville/Calonne Airport | Hazebrouck | FR |
| HZG | Xiguan Airport | Hanzhong | CN |
| HZH | Liping Airport | Liping | CN |
| HZK | Husavik Airport | Husavik | IS |
| HZL | Hazleton Airport | Hazleton | US |
| HZP | Horizon Airport | Fort Mackay | CA |
| HZV | Hazyview Airport | Hazyview | ZA |