| JAA | Jalalabad Airport | Jalalabad | AF |
| JAB | Jabiru Airport | Jabiru | AU |
| JAC | Jackson Hole Airport | Jackson | US |
| JAD | Jandakot Airport | Perth | AU |
| JAE | Technology Park Heliport | Atlanta | US |
| JAF | Kankesanturai Airport | Jaffna | LK |
| JAG | Jacobabad Airport | Jacobabad | PK |
| JAH | Off-Line Point | Aubagne | FR |
| JAI | Sanganeer International Airport | Jaipur | IN |
| JAJ | Perimeter Mall Heliport | Atlanta | US |
| JAK | Jacmel Airport | Jacmel | HT |
| JAL | Jalapa Airport | Jalapa | MX |
| JAM | Bezmer Airport | Jambol | BG |
| JAN | Jackson-Evers International Airport | Jackson | US |
| JAO | Beaver Ruin Heliport | Atlanta | US |
| JAP | Punta Renes Airport | Punta Renes | CR |
| JAQ | Jacquinot Bay Airport | Jacquinot Bay | PG |
| JAR | Jahrom Airport | Jahrom | IR |
| JAS | County Airport | Jasper | US |
| JAT | Jabot Island Airport | Jabot Island | MH |
| JAU | Jauja Airport | Jauja | PE |
| JAV | Ilulissat Airport | Ilulissat | GL |
| JAX | Jacksonville International Airport | Jacksonville | US |
| JBC | Boston City Heliport | Boston | US |
| JBD | CZ Bus Station | Jiangmen | CN |
| JBK | Berkeley Airport | Berkeley | US |
| JBP | Commerce Bus. Plaza Heliport | Los Angeles | US |
| JBQ | Dr. Joaquin Balaguer Airport | Higuero | DO |
| JBR | Jonesboro Airport | Jonesboro | US |
| JBS | Hacienda Business Park Heliport | Pleasanton | US |
| JBT | Bethel City Landing | Bethel | US |
| JCA | Palm Beach Heliport | Cannes | FR |
| JCB | Joacaba Airport | Joacaba | BR |
| JCC | China Basin Heliport | San Francisco | US |
| JCD | Downtown Heliport | St Croix Island | VI |
| JCE | Convention Center Heliport | Oakland | US |
| JCH | Heliport | Qasigiannguit | GL |
| JCI | Johnson Industrial Airport | Kansas City | US |
| JCJ | Chuja Heliport | Chuja | KR |
| JCK | Julia Creek Airport | Julia Creek | AU |
| JCM | Jacobina Airport | Jacobina | BR |
| JCN | Incheon Heliport | Incheon | KR |
| JCO | Comino Heliport | Comino | MT |
| JCR | Jacareacanga Airport | Jacareacanga | BR |
| JCT | Kimble County Airport | Junction | US |
| JCU | Ceuta Heliport | Ceuta | ES |
| JCX | Citicorp Plaza Heliport | Los Angeles | US |
| JCY | Johnson Airport | Johnson | US |
| JDA | John Day Airport | John Day | US |
| JDB | Dallas Downtown Heliport | Dallas | US |
| JDF | Francisco De Assis Airport | Juiz De Fora | BR |
| JDG | Jeongseok Airport | Jeongseok | KR |
| JDH | Jodhpur Airport | Jodhpur | IN |
| JDM | Miami Downtown Heliport | Miami | US |
| JDN | Jordan Airport | Jordan | US |
| JDO | Regional Do Cariri Airport | Juazeiro Do Norte | BR |
| JDP | Heliport De Paris | Paris | FR |
| JDR | Sao Joao Del Rei Airport | Sao Joao Del Rei | BR |
| JDT | Minneapolis Downtown Heliport | Minneapolis | US |
| JDX | Central Business District Heliport | Houston | US |
| JDY | Downey Heliport | Downey | US |
| JDZ | Jingdezhen Airport | Jingdezhen | CN |
| JEA | Railway Station | Jaen | ES |
| JEC | Off-line Point | Jersey City | US |
| JED | King Abdulaziz International Airport | Jeddah | SA |
| JEE | Jeremie Airport | Jeremie | HT |
| JEF | Jefferson City Memorial Airport | Jefferson City | US |
| JEG | Aasiaat Airport | Aasiaat | GL |
| JEJ | Jeh Island Airport | Jeh Island | MH |
| JEM | Emeryville Heliport | Emeryville | US |
| JEQ | Jequie Airport | Jequie | BR |
| JER | States Airport | Jersey | JE |
| JEV | Off-Line Point | Evry | FR |
| JFK | John F. Kennedy International Airport | New York | US |
| JFM | Fremantle Heliport | Fremantle | AU |
| JFN | Ashtabula Airport | Jefferson | US |
| JFR | Paamiut Airport | Paamiut | GL |
| JGA | Govardhanpur Airport | Jamnagar | IN |
| JGB | Jagdalpur Airport | Jagdalpur | IN |
| JGC | Grand Canyon Heliport | Grand Canyon | US |
| JGD | Jiagedaqi Airport | Jiagedaqi | CN |
| JGE | Geoje Heliport | Geoje | KR |
| JGL | Galleria Heliport | Atlanta | US |
| JGN | Jiayuguan Airport | Jiayuguan | CN |
| JGO | Heliport | Qeqertarsuaq | GL |
| JGP | Greenway Plaza Heliport | Houston | US |
| JGQ | Transco Tower Galleria Heliport | Houston | US |
| JGR | Heliport | Kangilinnguit | GL |
| JGS | Jinggangshan Airport | Ji'an | CN |
| JGX | Glendale Heliport | Glendale | US |
| JHB | Sultan Ismail International Airport | Johor Bahru | MY |
| JHC | Island Heliport | Garden City | US |
| JHE | Helsingborg Heliport | Angelholm/Helsingborg | SE |
| JHG | Xishuangbanna Gasa Intl Airport | Jinghong | CN |
| JHL | Albian Aerodrome | Fort Mackay | CA |
| JHM | Kapalua Airport | Kapalua | US |
| JHS | Sisimiut Airport | Sisimiut | GL |
| JHW | Jamestown Airport | Jamestown | US |
| JHY | Hyatt Regency Heliport | Cambridge | US |
| JIA | Juina Airport | Juina | BR |
| JIB | Ambouli Airport | Djibouti | DJ |
| JIC | Jinchuan Airport | Jinchang | CN |
| JID | City of Industry Heliport | Los Angeles | US |
| JIJ | Jigiga Airport | Jijiga | ET |
| JIK | Ikaria Island Airport | Ikaria Island | GR |
| JIL | Ertaizi Airport | Jilin | CN |
| JIM | Aba Segud Airport | Jimma | ET |
| JIN | Jinja Airport | Jinja | UG |
| JIO | Ontario International Heliport | Ontario | US |
| JIP | Jipijapa Airport | Jipijapa | EC |
| JIQ | Wulingshan Airport | Qianjiang | CN |
| JIR | Jiri Airport | Jiri | NP |
| JIU | Lushan Airport | Jiujiang | CN |
| JIW | Jiwani Airport | Jiwani | PK |
| JJA | Jajao Airport | Jajao | SB |
| JJI | Juanjui Airport | Juanjui | PE |
| JJM | Mulika Lodge Airport | Meru-Kinna | KE |
| JJN | Jinjiang Airport | Quanzhou | CN |
| JJU | Qaqortoq Heliport | Qaqortoq | GL |
| JKG | Axamo Airport | Jonkoping | SE |
| JKH | Omiros Airport | Chios | GR |
| JKL | Kalymnos Island Airport | Kalymnos Island | GR |
| JKR | Janakpur Airport | Janakpur | NP |
| JKT | Metropolitan Area | Jakarta | ID |
| JKV | Jacksonville Airport | Jacksonville | US |
| JLA | Quart Creek Airport | Cooper Lodge | US |
| JLB | Long Beach Heliport | Long Beach | US |
| JLD | Landskrona Heliport | Landskrona | SE |
| JLH | United States Army Heliport | Arlington Heights | US |
| JLN | Joplin Airport | Joplin | US |
| JLP | Off-Line Point | Juan Les Pins | FR |
| JLR | Jabalpur Airport | Jabalpur | IN |
| JLS | Jales Airport | Jales | BR |
| JLX | Union Station Heliport | Los Angeles | US |
| JMA | Marriot Astrodome Heliport | Houston | US |
| JMB | Jamba Airport | Jamba | AO |
| JMC | Marin County Airport | Sausalito | US |
| JMD | Market Centre Heliport | Dallas | US |
| JMH | Schaumburg Marriott Heliport | Schaumburg | US |
| JMK | Mykonos Airport | Mykonos | GR |
| JMM | Malmo Harbour Heliport | Malmo | SE |
| JMN | Mankato Municipal Heliport | Mankato | US |
| JMO | Jomsom Airport | Jomsom | NP |
| JMS | Jamestown Airport | Jamestown | US |
| JMU | Dongjiao Airport | Jiamusi | CN |
| JMY | Mammy Yoko Heliport | Freetown | SL |
| JNA | Januaria Airport | Januaria | BR |
| JNB | O.R. Tambo International Airport | Johannesburg | ZA |
| JNG | Qufu Airport | Jining | CN |
| JNH | North Park Inn Heliport | Dallas | US |
| JNI | Junin Airport | Junin | AR |
| JNJ | Jaaluni Airport | Duqm | OM |
| JNN | Heliport | Nanortalik | GL |
| JNP | Newport Beach Heliport | Newport Beach | US |
| JNS | Narsaq Heliport | Narsaq | GL |
| JNU | Juneau International Airport | Juneau | US |
| JNX | Naxos Airport | Naxos | GR |
| JNZ | Xiaolingzi Airport | Jinzhou | CN |
| JOC | Centerport Heliport | Santa Ana | US |
| JOE | Joensuu Airport | Joensuu | FI |
| JOG | Adisutjipto Airport | Yogyakarta | ID |
| JOH | Port Saint John's Airport | Port Saint John's | ZA |
| JOI | Cubatao Airport | Joinville | BR |
| JOJ | Doris Lake Ice Airport | Hope Bay | CA |
| JOK | Yoshkar-Ola Airport | Yoshkar-Ola | RU |
| JOL | Jolo Airport | Jolo | PH |
| JOM | Njombe Airport | Njombe | TZ |
| JOP | Josephstaal Airport | Josephstaal | PG |
| JOR | The City Heliport | Orange | US |
| JOS | Yakubu Gowon Airport | Jos | NG |
| JOT | Joliet Municipal Airport | Joliet | US |
| JPA | Castro Pinto Airport | Joao Pessoa | BR |
| JPD | Pasadena Heliport | Pasadena | US |
| JPN | Pentagon Army Airport | Washington | US |
| JPR | Ji-Parana Airport | Ji-Parana | BR |
| JPT | Texas Park Ten Heliport | Houston | US |
| JPU | La Defense Heliport | Paris | FR |
| JQA | Qaarsut Airport | Qaarsut | GL |
| JQE | Jaque Airport | Jaque | PA |
| JQF | Savelovsky Rail Station | Moscow | RU |
| JQO | Belorussky Railway Station | Moscow | RU |
| JRA | West 30th Street Heliport | New York | US |
| JRB | New York Downtown Manhattan Heliport | New York | US |
| JRC | Rochester Municipal Heliport | Rochester | US |
| JRD | Riverside Heliport | Riverside | US |
| JRE | East 60th Street Heliport | New York | US |
| JRF | Kalaeloa Airport | Kapolei | US |
| JRH | Rowriah Airport | Jorhat | IN |
| JRK | Heliport | Arsuk | GL |
| JRN | Juruena Airport | Juruena | BR |
| JRO | Kilimanjaro International Airport | Kilimanjaro | TZ |
| JRS | Jerusalem Airport | Jerusalem | IL |
| JSA | Jaisalmer Airport | Jaisalmer | IN |
| JSD | Sikorsky Heliport | Stratford | US |
| JSG | San Rafael Heliport | San Rafael | US |
| JSH | Siteia Airport | Siteia | GR |
| JSI | Alex. Papadiamantis Airport | Skiathos | GR |
| JSK | Municipal Heliport | Saint Cloud | US |
| JSL | Steel Pier Heliport | Atlantic City | US |
| JSM | Jose San de Martin Airport | Jose San de Martin | AR |
| JSN | Sherman Oaks Heliport | Los Angeles | US |
| JSO | Sodertalje Heliport | Sodertalje | SE |
| JSP | Seogwipo Heliport | Seogwipo | KR |
| JSR | Jessore Airport | Jessore | BD |
| JSS | Spetsai Island Airport | Spetsai Island | GR |
| JST | Cambria County Airport | Johnstown | US |
| JSU | Maniitsoq Heliport | Maniitsoq | GL |
| JSY | Dimitrios Vikelas Airport | Syros Island | GR |
| JTC | Arealva Airport | Bauru | BR |
| JTI | Jatai Airport | Jatai | BR |
| JTO | Thousand Oaks Heliport | Thousand Oaks | US |
| JTR | Santorini Airport | Thira | GR |
| JTY | Astypalaia Island Airport | Astypalaia Island | GR |
| JUA | Juara Airport | Juara | BR |
| JUB | Juba Airport | Juba | SS |
| JUC | Universal City Heliport | Los Angeles | US |
| JUH | Jiuhuashan Airport | Chizhou | CN |
| JUI | Juist Airport | Juist | DE |
| JUJ | El Cadillal Airport | Jujuy | AR |
| JUK | Heliport | Ukkusissat | GL |
| JUL | Juliaca Airport | Juliaca | PE |
| JUM | Jumla Airport | Jumla | NP |
| JUN | Jundah Airport | Jundah | AU |
| JUO | Jurado Airport | Jurado | CO |
| JUP | Cable Heliport | Upland | US |
| JUR | Jurien Bay Airport | Jurien Bay | AU |
| JUT | Juticalpa Airport | Juticalpa | HN |
| JUU | Heliport | Nuugaatsiaq | GL |
| JUV | Heliport | Upernavik | GL |
| JUZ | Quzhou Airport | Quzhou | CN |
| JVA | Ankavandra Airport | Ankavandra | MG |
| JVI | Kupper Airport | Manville | US |
| JVL | Rock County Airport | Janesville | US |
| JWA | Jwaneng Airport | Jwaneng | BW |
| JWC | Warner Center Business Plaza Heliport | Los Angeles | US |
| JWH | West Chase Hilton Heliport | Houston | US |
| JWL | Woodlawns Heliport | Houston | US |
| JWN | Zanjan Airport | Zanjan | IR |
| JXA | Xingkaihu Airport | Jixi | CN |
| JXN | Reynolds Municipal Airport | Jackson | US |
| JXS | Jiaxingnan Railway Station | Jiaxing | CN |
| JYR | Jiroft Airport | Jiroft | IR |
| JYV | Jyvaskyla Airport | Jyvaskyla | FI |
| JZH | Jiuzhai Huanglong Airport | Jiuzhaigou | CN |