| KAA | Kasama Airport | Kasama | ZM |
| KAB | Kariba Airport | Kariba | ZW |
| KAC | Kamishly Airport | Kamishly | SY |
| KAD | Kaduna Airport | Kaduna | NG |
| KAE | Kake Sea Plane Base | Kake | US |
| KAF | Karato Airport | Karato | PG |
| KAG | Air Base | Gangneung | KR |
| KAH | Yarra Bank Heliport | Melbourne | AU |
| KAI | Kaieteur Airport | Kaieteur | GY |
| KAJ | Kajaani Airport | Kajaani | FI |
| KAK | Kar Airport | Kar | PG |
| KAL | Kaltag Airport | Kaltag | US |
| KAM | Kamaran Island Airport | Kamaran Island | YE |
| KAN | Mallam Aminu Kano Intl Airport | Kano | NG |
| KAO | Kuusamo Airport | Kuusamo | FI |
| KAP | Kapanga Airport | Kapanga | CD |
| KAQ | Kamulai Airport | Kamulai | PG |
| KAR | Kamarang Airport | Kamarang | GY |
| KAS | Karasburg Airport | Karasburg | NA |
| KAT | Kaitaia Airport | Kaitaia | NZ |
| KAU | Kauhava Airport | Kauhava | FI |
| KAV | Kavanayen Airport | Kavanayen | VE |
| KAW | Kawthaung Airport | Kawthaung | MM |
| KAX | Kalbarri Airport | Kalbarri | AU |
| KAY | Wakaya Island Airport | Wakaya Island | FJ |
| KAZ | Kaubang Airport | Kau | ID |
| KBA | Kabala Airport | Kabala | SL |
| KBB | Kirkimbie Station Airport | Kirkimbie Station | AU |
| KBC | Birch Creek Airport | Birch Creek | US |
| KBD | Kimberly Downs Station Airport | Kimberly Downs Station | AU |
| KBE | Hot Springs Sea Plane Base | Bell Island | US |
| KBF | Karubaga Airport | Karubaga | ID |
| KBG | Kabalega Falls Airport | Kabalega Falls | UG |
| KBI | Kribi Airport | Kribi | CM |
| KBJ | Kings Canyon Airport | Kings Canyon | AU |
| KBK | Klagbay Airport | Klagbay | US |
| KBL | Khwaja Rawash International Airport | Kabul | AF |
| KBM | Kabwum Airport | Kabwum | PG |
| KBN | Tunta Airport | Kabinda | CD |
| KBO | Kabalo Airport | Kabalo | CD |
| KBP | Boryspil International Airport | Kiev | UA |
| KBQ | Kasungu Airport | Kasungu | MW |
| KBR | Sultan Ismail Petra Airport | Kota Bharu | MY |
| KBS | Bo Airport | Bo | SL |
| KBT | Kaben Island Airport | Kaben Island | MH |
| KBU | Gusti Sjamsir Alam Airport | Kotabaru | ID |
| KBV | Krabi Airport | Krabi | TH |
| KBW | Chignik Bay Airport | Chignik | US |
| KBX | Kambuaya Airport | Ayamaru | ID |
| KBY | Streaky Bay Airport | Streaky Bay | AU |
| KBZ | Kaikoura Airport | Kaikoura | NZ |
| KCA | Quici Airport | Kuqa | CN |
| KCB | Tepoe Airstrip | Kasikasima | SR |
| KCC | Coffman Cove Sea Plane Base | Coffman Cove | US |
| KCD | Kamur Airport | Kamur | ID |
| KCE | Collinsville Airport | Collinsville | AU |
| KCF | Thar Airport | Kadanwari | PK |
| KCG | Fisheries Airport | Chignik | US |
| KCH | Kuching International Airport | Kuching | MY |
| KCI | Kun Airport | Kun | ID |
| KCJ | Komaio Airport | Komaio | PG |
| KCK | Kirensk Airport | Kirensk | RU |
| KCL | Lagoon Airport | Chignik | US |
| KCM | Kahramanmaras Airport | Kahramanmaras | TR |
| KCN | Chernofski Sea Plane Base | Chernofski | US |
| KCO | Cengiz Topel Airport | Kocaeli | TR |
| KCP | Kamianets-Podilskiy Airport | Kamianets-Podilskiy | UA |
| KCQ | Chignik Lake Airport | Chignik | US |
| KCR | Colorado Creek Airport | Colorado Creek | US |
| KCS | Kings Creek Station Airport | Kings Creek Station | AU |
| KCT | Koggala Airport | Koggala | LK |
| KCU | Masindi Airport | Masindi | UG |
| KCZ | Kochi Airport | Kochi | JP |
| KDA | Kolda Airport | Kolda | SN |
| KDB | Kambalda Airport | Kambalda | AU |
| KDC | Kandi Airport | Kandi | BJ |
| KDD | Khuzdar Airport | Khuzdar | PK |
| KDE | Koroba Airport | Koroba | PG |
| KDF | Off-Line Point | Kouba | DZ |
| KDH | Kandahar International Airport | Kandahar | AF |
| KDI | Halu Oleo Airport | Kendari | ID |
| KDJ | Ndjole-Ville Airport | Ndjole | GA |
| KDK | Kodiak Municipal Airport | Kodiak | US |
| KDL | Kardla Airport | Kardla | EE |
| KDM | Kaadedhdhoo Island Airport | Kaadedhdhoo Island | MV |
| KDN | Ndende Airport | Ndende | GA |
| KDO | Kadhdhoo Island Airport | Kadhdhoo Island | MV |
| KDP | Kandep Airport | Kandep | PG |
| KDQ | Kamberatoro Airport | Kamberatoro | PG |
| KDR | Kandrian Airport | Kandrian | PG |
| KDS | Kamaran Downs Airport | Kamaran Downs | AU |
| KDT | Kamphaeng Saen Airport | Kamphaeng Saen | TH |
| KDU | Skardu Airport | Skardu | PK |
| KDV | Vunisea Airport | Kadavu Island | FJ |
| KDW | Victoria Resevoir SPB | Kandy | LK |
| KDX | Kadugli Airport | Kadugli | SD |
| KDY | Teply Klyuch Airport | Khandyga | RU |
| KDZ | Polgolla Reservoir SPB | Kandy | LK |
| KEB | English Bay Airport | English Bay | US |
| KEC | Kasenga Airport | Kasenga | CD |
| KED | Kaedi Airport | Kaedi | MR |
| KEE | Kelle Airport | Kelle | CG |
| KEF | Keflavik International Airport | Reykjavik | IS |
| KEG | Keglsugl Airport | Keglsugl | PG |
| KEH | Kenmore Air Harbor Airport | Kenmore Air Harbor | US |
| KEI | Kepi Airport | Kepi | ID |
| KEJ | Kemerovo Airport | Kemerovo | RU |
| KEK | Ekwok Airport | Ekwok | US |
| KEL | Holtenau Airport | Kiel | DE |
| KEM | Kemi/Tornio Airport | Kemi/Tornio | FI |
| KEN | Kenema Airport | Kenema | SL |
| KEO | Odienne Airport | Odienne | CI |
| KEP | Nepalganj Airport | Nepalganj | NP |
| KEQ | Kebar Airport | Kebar | ID |
| KER | Kerman Airport | Kerman | IR |
| KES | Kelsey Airport | Kelsey | CA |
| KET | Kengtung Airport | Kentung | MM |
| KEU | Kelly Bar Airport | Kelly Bar | US |
| KEV | Halli Airport | Kuorevesi | FI |
| KEW | Keewaywin Airport | Keewaywin | CA |
| KEX | Kanabea Airport | Kanabea | PG |
| KEY | Kericho Airport | Kericho | KE |
| KEZ | Kelani-Peliyagooda SPB | Colombo | LK |
| KFA | Kiffa Airport | Kiffa | MR |
| KFE | Fortescue Dave Forrest Airport | Cloudbreak | AU |
| KFG | Kalkgurung Airport | Kalkgurung | AU |
| KFI | Railway Station | Hefei | CN |
| KFP | False Pass Airport | False Pass | US |
| KFS | Kastamonu Airport | Kastamonu | TR |
| KGA | Kananga Airport | Kananga | CD |
| KGB | Konge Airport | Konge | PG |
| KGC | Kingscote Airport | Kingscote | AU |
| KGD | Khrabrovo Airport | Kaliningrad | RU |
| KGE | Kaghau Island Airport | Kaghau Island | SB |
| KGF | Sary - Arka Airport | Karaganda | KZ |
| KGG | Kedougou Airport | Kedougou | SN |
| KGH | Yongai Airport | Yongai | PG |
| KGI | Kalgoorlie-Boulder Airport | Kalgoorlie-Boulder | AU |
| KGJ | Karonga Airport | Karonga | MW |
| KGK | New Koliganek Airport | New Koliganek | US |
| KGL | Kigali International Airport | Kigali | RW |
| KGM | Kungim Airport | Kungim | PG |
| KGN | Kasongo-Lunda Airport | Kasongo Lunda | CD |
| KGO | Kirovohrad Airport | Kirovohrad | UA |
| KGP | Kogalym Airport | Kogalym | RU |
| KGQ | Heliport | Kangersuatsiaq | GL |
| KGR | Kulgera Roadhouse Airport | Kulgera | AU |
| KGS | Ippokratis Airport | Kos | GR |
| KGT | Kangding Airport | Kangding | CN |
| KGU | Keningau Airport | Keningau | MY |
| KGW | Kagi Airport | Kagi | PG |
| KGX | Grayling Airport | Grayling | US |
| KGY | Kingaroy Airport | Kingaroy | AU |
| KGZ | Glacier Creek Airport | Glacier Creek | US |
| KHA | Khaneh Airport | Khaneh | IR |
| KHC | Kerch International Airport | Kerch | UA |
| KHD | Khorramabad Airport | Khorramabad | IR |
| KHE | Kherson Airport | Kherson | UA |
| KHG | Kashi Airport | Kashi | CN |
| KHH | Kaohsiung International Airport | Kaohsiung | TW |
| KHI | Jinnah International Airport | Karachi | PK |
| KHJ | Kauhajoki Airport | Kauhajoki | FI |
| KHK | Khark Airport | Khark | IR |
| KHM | Khamtis Airport | Khamtis | MM |
| KHN | Changbei International Airport | Nanchang | CN |
| KHO | Khoka Moya Airport | Manyeleti | ZA |
| KHQ | Heliport | Kullorsuaq | GL |
| KHR | Kharkhorin Airport | Kharkhorin | MN |
| KHS | Khasab Airport | Khasab | OM |
| KHT | Chapman Airport | Khost | AF |
| KHU | Kremenchuk Airport | Kremenchuk | UA |
| KHV | Novy Airport | Khabarovsk | RU |
| KHW | Khwai River Lodge Airport | Khwai River Lodge | BW |
| KHY | Khoy Airport | Khoy | IR |
| KHZ | Kauehi Airport | Kauehi | PF |
| KIA | Kaiapit Airport | Kaiapit | PG |
| KIB | Ivanof Bay Sea Plane Base | Ivanof Bay | US |
| KIC | Mesa Del Rey Airport | King City | US |
| KID | Kristianstad Airport | Kristianstad | SE |
| KIE | Aropa Airport | Kieta | PG |
| KIF | Kingfisher Lake Airport | Kingfisher Lake | CA |
| KIG | Koingnaas Airport | Koingnaas | ZA |
| KIH | Kish Island Airport | Kish Island | IR |
| KII | Kibuli Airport | Kibuli | PG |
| KIJ | Niigata Airport | Niigata | JP |
| KIK | Air Base | Kirkuk | IQ |
| KIL | Kilwa Airport | Kilwa | CD |
| KIM | Kimberley Airport | Kimberley | ZA |
| KIN | Norman Manley Airport | Kingston | JM |
| KIO | Kili Island Airport | Kili Island | MH |
| KIP | Kickapoo Airport | Wichita Falls | US |
| KIQ | Kira Airport | Kira | PG |
| KIR | Kerry Airport | Kerry | IE |
| KIS | Kisumu Airport | Kisumu | KE |
| KIT | Kythira Airport | Kythira | GR |
| KIU | Kiunga Airport | Kiunga | KE |
| KIV | Chisinau Airport | Chisinau | MD |
| KIW | Southdowns Airport | Kitwe | ZM |
| KIX | Kansai International Airport | Osaka | JP |
| KIY | Kilwa Masoko Airport | Kilwa | TZ |
| KIZ | Kikinonda Airport | Kikinonda | PG |
| KJA | Yemelyanovo Airport | Krasnoyarsk | RU |
| KJH | Kai Li Airport | Huang Ping | CN |
| KJI | Kanas Airport | Burqin | CN |
| KJK | Wevelgem Airport | Kortrijk | BE |
| KJP | Kerama Airport | Kerama | JP |
| KJU | Kamiraba Airport | Kamiraba | PG |
| KKA | Koyuk Airport | Koyuk | US |
| KKB | Kitui Bay Sea Plane Base | Kitui Bay | US |
| KKC | Khon Kaen Airport | Khon Kaen | TH |
| KKD | Kokoda Airport | Kokoda | PG |
| KKE | Bay of Islands Airport | Kerikeri | NZ |
| KKF | Kagvik Creek Airport | Kagvik Creek | US |
| KKG | Konawaruk Airport | Konawaruk | GY |
| KKH | Kongiganak Airport | Kongiganak | US |
| KKI | Akiachak Sea Plane Base | Akiachak | US |
| KKJ | Kokura Airport | Kitakyushu | JP |
| KKK | Kalakaket Air Force Station | Kalakaket | US |
| KKL | Karluk Lake Sea Plane Base | Karluk Lake | US |
| KKM | Khok Kathiam Airport | Lop Buri | TH |
| KKN | Hoeybuktmoen Airport | Kirkenes | NO |
| KKO | Kaikohe Airport | Kaikohe | NZ |
| KKP | Koolburra Airport | Koolburra | AU |
| KKQ | Krasnoselkup Airport | Krasnoselkup | RU |
| KKR | Kaukura Airport | Kaukura | PF |
| KKT | Kentland Airport | Kentland | US |
| KKU | Ekuk Airport | Ekuk | US |
| KKW | Kikwit Airport | Kikwit | CD |
| KKX | Kikai Airport | Kikai | JP |
| KKY | Kilkenny Airport | Kilkenny | IE |
| KKZ | Koh Kong Airport | Koh Kong | KH |
| KLA | Off-Line Point | Kampala | UG |
| KLB | Kalabo Airport | Kalabo | ZM |
| KLC | Kaolack Airport | Kaolack | SN |
| KLD | Migalovo Airport | Tver | RU |
| KLE | Kaele Airport | Kaele | CM |
| KLF | Grabtsevo Airport | Kaluga | RU |
| KLG | Kalskag Municipal Airport | Kalskag | US |
| KLH | Kolhapur Airport | Kolhapur | IN |
| KLI | Kotakoli Airport | Kotakoli | CD |
| KLK | Fergusons Gulf Airport | Kalokol | KE |
| KLL | Levelock Airport | Levelock | US |
| KLM | Kalaleh Airport | Kalaleh | IR |
| KLN | Larsen Sea Plane Base | Larsen Bay | US |
| KLO | Kalibo International Airport | Kalibo | PH |
| KLP | Kelp Bay Airport | Kelp Bay | US |
| KLQ | Keluang Airport | Keluang | ID |
| KLR | Kalmar Airport | Kalmar | SE |
| KLS | Longview Airport | Kelso | US |
| KLT | Hbf Railway Station | Kaiserslautern | DE |
| KLU | Klagenfurt Airport | Klagenfurt | AT |
| KLV | Karlovy Vary International Airport | Karlovy Vary | CZ |
| KLW | Klawock Airport | Klawock | US |
| KLX | Kalamata Airport | Kalamata | GR |
| KLY | Kalima Airport | Kalima | CD |
| KLZ | Kleinsee Airport | Kleinsee | ZA |
| KMA | Kerema Airport | Kerema | PG |
| KMB | Koinambe Airport | Koinambe | PG |
| KMC | King Khalid Military City Airport | King Khalid Military City | SA |
| KME | Kamembe Airport | Cyangugu | RW |
| KMF | Kamina Airport | Kamina | PG |
| KMG | Changshui International Airport | Kunming | CN |
| KMH | Johan Pienaar Airport | Kuruman | ZA |
| KMI | Miyazaki Airport | Miyazaki | JP |
| KMJ | Kumamoto Airport | Kumamoto | JP |
| KMK | Makabana Airport | Makabana | CG |
| KML | Kamileroi Airport | Kamileroi | AU |
| KMM | Kiman Airport | Kiman | ID |
| KMN | Kamina-Ville Airport | Kamina | CD |
| KMO | Manokotak Sea Plane Base | Manokotak | US |
| KMP | Keetmanshoop Airport | Keetmanshoop | NA |
| KMQ | Komatsu Airport | Komatsu | JP |
| KMR | Karimui Airport | Karimui | PG |
| KMS | Kumasi Airport | Kumasi | GH |
| KMT | Kampot Airport | Kampot | KH |
| KMU | Kisimayu Airport | Kisimayu | SO |
| KMV | Kalemyo Airport | Kalemyo | MM |
| KMW | Kostroma Airport | Kostroma | RU |
| KMX | King Khalid Air Base | Khamis Mushait | SA |
| KMY | Moser Bay Airport | Moser Bay | US |
| KMZ | Kaoma Airport | Kaoma | ZM |
| KNA | Vina del Mar Airport | Vina del Mar | CL |
| KNB | Kanab Airport | Kanab | US |
| KND | Kindu Airport | Kindu | CD |
| KNE | Kanainj Airport | Kanainj | PG |
| KNF | Marham Royal Air Force | Kings Lynn | GB |
| KNG | Kaimana Airport | Utarom | ID |
| KNH | Shangyi Airport | Kinmen | TW |
| KNI | Katanning Airport | Katanning | AU |
| KNJ | Kindamba Airport | Kindamba | CG |
| KNK | Kakhonak Airport | Kakhonak | US |
| KNL | Kelanoa Airport | Kelanoa | PG |
| KNM | Kaniama Airport | Kaniama | CD |
| KNN | Diankana Airport | Kankan | GN |
| KNO | Kuala Namu Airport | Medan | ID |
| KNP | Capanda Airport | Capanda | AO |
| KNQ | Kone Airport | Kone | NC |
| KNR | Jam Airport | Kangan | IR |
| KNS | King Island Airport | King Island | AU |
| KNT | Kennett Municipal Airport | Kennett | US |
| KNU | Kanpur Airport | Kanpur | IN |
| KNV | Knights Inlet Airport | Knights Inlet | CA |
| KNW | New Stuyahok Airport | New Stuyahok | US |
| KNX | Kununurra Airport | Kununurra | AU |
| KNZ | Kenieba Airport | Kenieba | ML |
| KOA | Keahole Airport | Kona | US |
| KOC | Koumac Airport | Koumac | NC |
| KOD | Kotabangun Airport | Kotabangun | ID |
| KOE | El Tari Airport | Kupang | ID |
| KOF | Komatipoort Airport | Komatipoort | ZA |
| KOG | Khong Airport | Khong | LA |
| KOH | Koolatah Airport | Koolatah | AU |
| KOI | Kirkwall Airport | Kirkwall | GB |
| KOJ | Kagoshima Airport | Kagoshima | JP |
| KOK | Kruunupyy Airport | Kokkola/Pietarsaari | FI |
| KOL | Koumala Airport | Koumala | CF |
| KOM | Komo Airport | Komo | PG |
| KON | Kon Tum Airport | Kon Tum | VN |
| KOO | Kongolo Airport | Kongolo | CD |
| KOP | Nakhon Phanom Airport | Nakhon Phanom | TH |
| KOQ | Koethen Airport | Koethen | DE |
| KOR | Kakoro Airport | Kakoro | PG |
| KOS | Sihanoukville International Airport | Sihanoukville | KH |
| KOT | Kotlik Airport | Kotlik | US |
| KOU | Koulamoutou Airport | Koulamoutou | GA |
| KOV | Kokshetau Airport | Kokshetau | KZ |
| KOW | Huangjin Airport | Ganzhou | CN |
| KOX | Kokonao Airport | Kokonao | ID |
| KOY | Olga Bay Sea Plane Base | Olga Bay | US |
| KOZ | Ouzinkie Sea Plane Base | Ouzinkie | US |
| KPA | Kopiago Airport | Kopiago | PG |
| KPB | Point Baker Sea Plane Base | Point Baker | US |
| KPC | Port Clarence Airport | Port Clarence | US |
| KPD | King Of Prussia Airport | King of Prussia | US |
| KPE | Yapsei Airport | Yapsei | PG |
| KPF | Kondubol Airport | Kondubol | PG |
| KPG | Kurupung Airport | Kurupung | GY |
| KPH | Pauloff Harbor Sea Plane Base | Pauloff Harbor | US |
| KPI | Kapit Airport | Kapit | MY |
| KPK | Parks Sea Plane Base | Parks | US |
| KPL | Kapal Airport | Kapal | PG |
| KPM | Kompiam Airport | Kompiam | PG |
| KPN | Kipnuk Sea Plane Base | Kipnuk | US |
| KPO | Pohang Airport | Pohang | KR |
| KPP | Kalpowar Airport | Kalpowar | AU |
| KPR | Port Williams Sea Plane Base | Port Williams | US |
| KPS | Kempsey Airport | Kempsey | AU |
| KPT | Jackpot Airport | Jackpot | US |
| KPV | Perryville Sea Plane Base | Perryville | US |
| KPW | Keperveyem Airport | Keperveyem | RU |
| KPY | Port Bailey Sea Plane Base | Port Bailey | US |
| KQA | Akutan Airport | Akutan | US |
| KQL | Kol Airport | Kol | PG |
| KQR | Kararra Airport | Kararra | AU |
| KQT | Kurgan Tube International Airport | Qurghonteppa | TJ |
| KRA | Kerang Airport | Kerang | AU |
| KRB | Karumba Airport | Karumba | AU |
| KRC | Depati Parbo Airport | Kerinci | ID |
| KRD | Kurundi Station Airport | Kurundi Station | AU |
| KRE | Kirundo Airport | Kirundo | BI |
| KRF | Kramfors Airport | Kramfors | SE |
| KRG | Karasabai Airport | Karasabai | GY |
| KRH | Off-Line Point | Redhill | GB |
| KRI | Kikori Airport | Kikori | PG |
| KRJ | Karawari Airport | Karawari | PG |
| KRK | J. Paul II Balice International Airport | Krakow | PL |
| KRL | Korla Airport | Korla | CN |
| KRM | Karanambo Airport | Karanambo | GY |
| KRN | Kiruna Airport | Kiruna | SE |
| KRO | Kurgan Airport | Kurgan | RU |
| KRP | Karup Airport | Karup | DK |
| KRQ | Kramatorsk Airport | Kramatorsk | UA |
| KRR | Pashkovsky Airport | Krasnodar | RU |
| KRS | Kjevik Airport | Kristiansand | NO |
| KRT | Khartoum International | Khartoum | SD |
| KRU | Kerau Airport | Kerau | PG |
| KRV | Kerio Valley Airport | Kimwarer | KE |
| KRW | Turkmanbashi Airport | Turkmenbashi | TM |
| KRX | Karkar Island Airport | Karkar Island | PG |
| KRY | Karamay Airport | Karamay | CN |
| KRZ | Kiri Airport | Kiri | CD |
| KSA | Kosrae International Airport | Kosrae | FM |
| KSB | Kasanombe Airport | Kasanombe | PG |
| KSC | Barca Airport | Kosice | SK |
| KSD | Karlstad Airport | Karlstad | SE |
| KSE | Kasese Airport | Kasese | UG |
| KSF | Calden | Kassel | DE |
| KSG | Kisengam Airport | Kisengam | PG |
| KSH | Shahid Ashrafi Esfahani Airport | Kermanshah | IR |
| KSI | Kissidougou Airport | Kissidougou | GN |
| KSJ | Kasos Island Airport | Kasos Island | GR |
| KSK | Karlskoga Airport | Karlskoga | SE |
| KSL | Kassala Airport | Kassala | SD |
| KSM | Saint Marys Airport | Saint Marys Airport | US |
| KSN | Kostanay Airport | Kostanay | KZ |
| KSO | Aristotelis Airport | Kastoria | GR |
| KSP | Kosipe Airport | Kosipe | PG |
| KSQ | Khanabad Aiport | Karshi | UZ |
| KSR | Sandy River Airpor | Sandy River | US |
| KSS | Dignangan Airport | Sikasso | ML |
| KST | Rabak Airport | Kosti | SD |
| KSU | Kvernberget Airport | Kristiansund | NO |
| KSV | Springvale Airport | Springvale | AU |
| KSW | Kiryat Shmona Airport | Kiryat Shmona | IL |
| KSX | Yasuru Airport | Yasuru | PG |
| KSY | Kars Airport | Kars | TR |
| KSZ | Kotlas Airport | Kotlas | RU |
| KTA | Karratha Airport | Karratha | AU |
| KTB | Thorne Bay Airport | Thorne Bay | US |
| KTC | Katiola Airport | Katiola | CI |
| KTD | Kitadaito Airport | Kitadaito | JP |
| KTE | Kerteh Airport | Kerteh | MY |
| KTF | Takaka Airport | Takaka | NZ |
| KTG | Rahadi Osman Airport | Ketapang | ID |
| KTH | Tikchik Sea Plane Base | Tikchik | US |
| KTI | Kratie Airport | Kratie | KH |
| KTK | Kunua Airport | Kunua | PG |
| KTL | Kitale Airport | Kitale | KE |
| KTM | Tribhuvan International Airport | Kathmandu | NP |
| KTN | Ketchikan International Airport | Ketchikan | US |
| KTO | Kato Airport | Kato | GY |
| KTP | Tinson Airport | Kingston | JM |
| KTQ | Kitee Airport | Kitee | FI |
| KTR | RAAF Tindal | Katherine | AU |
| KTS | Brevig Mission Airport | Teller Mission | US |
| KTT | Kittila Airport | Kittila | FI |
| KTU | Kota Airport | Kota | IN |
| KTV | Kamarata Airport | Kamarata | VE |
| KTW | Pyrzowice Airport | Katowice | PL |
| KTX | Koutiala Airport | Koutiala | ML |
| KTY | Katukurunda Airport | Katukurunda | LK |
| KTZ | Off-Line Point | Kwun Tong | HK |
| KUA | Sultan Haji Ahmad Shah Airport | Kuantan | MY |
| KUB | Off-Line Point | Kuala Belait | BN |
| KUC | Kuria Airport | Kuria | KI |
| KUD | Kudat Airport | Kudat | MY |
| KUE | Kukundu Airport | Kukundu | SB |
| KUF | Kurumoch Airport | Samara | RU |
| KUG | Kubin Airport | Kubin | AU |
| KUH | Kushiro Airport | Kushiro | JP |
| KUI | Off-Line Point | Kawau Island | NZ |
| KUJ | Off-Line Point | Kushimoto | JP |
| KUK | Kasigluk Airport | Kasigluk | US |
| KUL | Kuala Lumpur International Airport | Kuala Lumpur | MY |
| KUM | Yakushima Airport | Yakushima | JP |
| KUN | Kaunas International Airport | Kaunas | LT |
| KUO | Kuopio Airport | Kuopio | FI |
| KUP | Kupiano Airport | Kupiano | PG |
| KUQ | Kuri Airport | Kuri | PG |
| KUR | Razer Airport | Kiran wa Munjan | AF |
| KUS | Kulusuk Airport | Kulusuk | GL |
| KUT | Kutaisi Airport | Kutaisi | GE |
| KUU | Bhuntar Airport | Kullu | IN |
| KUV | Gunsan Airport | Gunsan | KR |
| KUW | Kugururok River Airport | Kugururok River | US |
| KUX | Kuyol Airport | Kuyol | PG |
| KUY | Kamusi Airport | Kamusi | PG |
| KUZ | Heliport | Kuummiut | GL |
| KVA | Megas Alexandros Airport | Kavala | GR |
| KVB | Skovde Airport | Skovde | SE |
| KVC | King Cove Airport | King Cove | US |
| KVD | Ganja Airport | Ganja | AZ |
| KVE | Kitava Island Airport | Kitava Island | PG |
| KVG | Kavieng Airport | Kavieng | PG |
| KVK | Khibiny Airport | Kirovsk/Apatity | RU |
| KVL | Kivalina Airport | Kivalina | US |
| KVM | Markovo Airport | Markovo | RU |
| KVN | Kunshannan Railway Stn | Kunshan | CN |
| KVR | Kavalerovo Airport | Kavalerovo | RU |
| KVU | SPB | Korolevu | FJ |
| KVX | Pobedilovo Airport | Kirov | RU |
| KWA | Bucholz AAF | Kwajalein Island | MH |
| KWB | Karimunjawa Airport | Karimunjawa | ID |
| KWD | Kawadjia Airport | Kawadjia | CF |
| KWE | Longdongbao Intl Airport | Guiyang | CN |
| KWF | Waterfall Sea Plane Base | Waterfall | US |
| KWG | Lozuvatka International Airport | Krivyi Rih | UA |
| KWH | Khwahan Airport | Khwahan | AF |
| KWI | Kuwait International Airport | Kuwait | KW |
| KWJ | Gwangju Airport | Gwangju | KR |
| KWK | Kwigillingok Airport | Kwigillingok | US |
| KWL | Liangjiang International Airport | Guilin | CN |
| KWM | Kowanyama Airport | Kowanyama | AU |
| KWN | Kwinhagak Airport | Quinhagak | US |
| KWO | Kawito Airport | Kawito | PG |
| KWP | Village Sea Plane Base | West Point | US |
| KWR | Kwai Harbour Airport | Kwai Harbour | SB |
| KWS | Kwailibesi Airport | Kwailibesi | SB |
| KWT | Kwethluk Airport | Kwethluk | US |
| KWU | Mansion House Airport | Mansion House | NZ |
| KWV | Kurwina Airport | Kurwina | PG |
| KWX | Kiwai Island Airport | Kiwai Island | PG |
| KWY | Kiwayu Airport | Kiwayu | KE |
| KWZ | Kolwezi Airport | Kolwezi | CD |
| KXA | Kasaan Sea Plane Base | Kasaan | US |
| KXE | P. C. Pelser Airport | Klerksdorp | ZA |
| KXF | Koro Airport | Koro | FJ |
| KXK | Khurba Airport | Komsomolsk-an-Amure | RU |
| KXR | Karoola Airport | Karoola | PG |
| KXU | Katiu Airport | Katiu | PF |
| KYA | Konya Airport | Konya | TR |
| KYD | Lanyu Orchid Island Airport | Lanyu (Orchid Island) | TW |
| KYE | Rene Mouawad AB | Tripoli | LB |
| KYF | Yeelirrie Airport | Yeelirrie | AU |
| KYI | Yalata Mission Airport | Yalata Mission | AU |
| KYK | Karluk Airport | Karluk | US |
| KYL | Port Largo Airport | Key Largo | US |
| KYN | Central Railway Station | Milton Keynes | GB |
| KYO | Topp of Tampa Airport | Tampa | US |
| KYP | Kyaukpyu Airport | Kyaukpyu | MM |
| KYS | Dag-Dag Airport | Kayes | ML |
| KYT | Kyauktu Airport | Kyauktu | MM |
| KYU | Koyukuk Airport | Koyukuk | US |
| KYX | Yalumet Airport | Yalumet | PG |
| KYY | Bus Station | Karamay | CN |
| KYZ | Kyzyl Airport | Kyzyl | RU |
| KZB | Zachar Bay Sea Plane Base | Zachar Bay | US |
| KZC | KampongChhnang Airport | KampongChhnang | KH |
| KZD | Krakor Airport | Krakor | KH |
| KZF | Kaintiba Airport | Kaintiba | PG |
| KZG | Kitzingen Airport | Kitzingen | DE |
| KZH | Kizhuyak Airport | Kizhuyak | US |
| KZI | Filippos Airport | Kozani | GR |
| KZN | Kazan International Airport | Kazan | RU |
| KZO | Kyzylorda Airport | Kyzylorda | KZ |
| KZR | Zafer Airport | Kutahya | TR |
| KZS | Megisti Airport | Megisti | GR |