The following is a lists of IATA airport codes, IATA location identifiers or IATA station codes. The three-letter codes are selected by the International Air Transport Association (IATA) designate many airports around the world. The characters prominently displayed on baggage tags attached at airport check-in desks are an example of a way these codes are used.

The assignment of these codes is governed by IATA Resolution 767, and it is administered by IATA headquarters in Montreal. The codes are published biannually in the IATA Airline Coding Directory.

  • KAC (OSKL): Al Qamishli Airport, Kameshli, Syria (Qamishli/Kameshli/Kamishly)
  • KAL (PAKV): Kaltag Airport, Kaltag, Alaska, United States
  • KAR (SYKM): Kamarang Airport, Kamarang, Guyana
  • KAT (NZKT): Kaitaia Airport, Kaitaia, New Zealand
  • KBL (OAKB): Kabul International Airport, Kabul, Afghanistan
  • KBP (UKBB): Boryspil Airport, Kiev, Ukraine
  • KBR (WMKC): Sultan Ismail Petra Airport, Kota Bharu, Malaysia
  • KCB, Tepoe Airstrip, Kasikasima, Suriname
  • KCH (WBGG): Kuching International Airport, Kuching, Sarawak, Malaysia
  • KCL, Chignik Lagoon Airport, Chignik Flats, Alaska, United States
  • KCM (LTCN): Kahramanmaraş Airport, Kahramanmaraş, Turkey
  • KCR, Colorado Creek Airport, Colorado Creek, Alaska, United States
  • KCT (VCII): Koggala Airport, Galle, Sri Lanka
  • KCZ, Kochi Airport, Kōchi, Japan
  • KDA (GOGK): Kolda North Airport, Kolda, Senegal
  • KDG, Kardjali Airport, Kardjali, Bulgaria
  • KDH (OAKN): Kandahar International Airport, Kandahar, Afghanistan
  • KDK, Kodiak Municipal Airport, Kodiak, Alaska, United States
  • KDL (EEKA): Kärdla Airport, Kärdla, Hiiumaa, Estonia
  • KDM, Kaadedhdhoo Airport, Kaadedhdhoo Island, Gaafu Dhaalu Atoll, Maldives
  • KDO, Kadhdhoo Airport, Kadhdhoo Island, Laamu Atoll, Maldives
  • KEB, English Bay Airport, English Bay, Alaska, United States
  • KEF (BIKF): Keflavík International Airport, Keflavík (near Reykjavík), Iceland
  • KEJ (UNEE): Kemerovo Airport, Kemerovo, Kemerovo Oblast, Russia
  • KEK, Ekwok Airport, Ekwok, Alaska, United States
  • KEL, Kiel Holtenau Airport, Kiel, Germany
  • KEP, Mahendra Airport, Nepalgunj, Nepal
  • KFS, Uzunyazi Airport, Kastamonu, Turkey
  • KGD (UMKK): Khrabrovo Airport, Kaliningrad, Russia
  • KGF (UAKK): Sary-Arka Airport, Karaganda, Kazakhstan
  • KGG (GOTK): Kédougou Airport, Kédougou, Senegal
  • KGL (HRYR): Kigali International Airport, Kigali, Rwanda
  • KGO (UKKG): Kirovograd, Kirovograd, Ukraine
  • KGP (USRK): Kogalym Airport, Kogalym, Tyumen Oblast, Russia
  • KGS (LGKO): Kos Island International Airport, Hippocrates, Antimachia, Kos, Greece
  • KGX, Grayling Airport, Grayling, Alaska, United States
  • KGZ, Glacier Creek Airport, Glacier Creek, Alaska, United States
  • KHC, Kerch, Kerch, Ukraine
  • KHH (RCKH): Kaohsiung International Airport, Kaohsiung, Republic of China
  • KHI (OPKC): Jinnah International Airport (Quaid-e-Azam International Airport): Karachi, Pakistan
  • KHT (OAKS): Khost Airport, Khost, Afghanistan
  • KHV (UHHH): Khabarovsk Novy Airport, Khabarovsk, Russia
  • KIC (KKIC): Mesa Del Rey Airport, King City, California, United States
  • KIJ (RJSN): Niigata Airport, Niigata, Japan
  • KIK, Kirkuk, Kirkuk, Iraq
  • KIM (FAKM): Kimberley Airport, Kimberley, South Africa
  • KIN (MKJP): Norman Manley International Airport, Kingston, Jamaica
  • KIR (EIKY): Kerry Airport, Tralee, County Kerry, Ireland
  • KIV (LUKK): Chişinău International Airport, Chişinău, Moldova
  • KIX (RJBB): Kansai International Airport, Osaka, Japan
  • KJA (UNKL) – Krasnoyarsk Yemelyanovo Airport – Krasnoyarsk, Russia
  • KKA (PAKK): Koyuk Alfred Adams Airport, Koyuk, Alaska, United States
  • KKE (NZKK): Bay of Islands Airport, Kerikeri, New Zealand
  • KKN (ENKR): Kirkenes Airport, Høybuktmoen, Kirkenes, Finnmark, Norway
  • KKU, Ekuk Airport, Ekuk, Alaska, United States
  • KLC (GOOK): Kaolack Airport, Kaolack, Senegal
  • KLF, Kaluga Airport, Kaluga, Russian Federation
  • KLG (PALG): Kalskag Airport, Kalskag, Alaska, United States
  • KLJ (EYKL): Klaipeda Airport, Klaipeda, Lithuania
  • KLS (KKLS): Kelso-Longview Airport, Kelso, Washington, United States
  • KLU (LOWK): Klagenfurt Airport, Klagenfurt, Austria
  • KLV (LKKV): Karlovy Vary Airport, Karlovy Vary, Czech republic
  • KMG (ZPPP): Kunming Wujiaba International Airport, kunming, the People's Republic of China
  • [[KMI]] (RJFM): Miyazaki Airport, Miyazaki, Japan
  • KMJ (RJFT): Kumamoto Airport, Kumamoto, Japan
  • KMK (FCPA): Makabana Airport, Makabana, Republic of the Congo
  • KMU (HCMK): Kisimayu Airport, Kisimayu, Somalia
  • KNB (KKNB): Kanab Municipal Airport, Kanab, Utah, United States
  • KNS (YKII): King Island Airport, Currie, Tasmania, Australia
  • KNW (PANW): New Stuyahok Airport, New Stuyahok, Alaska, United States
  • KOA (PHKO): Kona International Airport, Kailua/Kona, Hawaii, United States
  • KOI (EGPA): Kirkwall Airport, Kirkwall, Orkney Islands, United Kingdom
  • KOJ (RJFK): Kagoshima Airport, Kagoshima, Japan
  • KOV, Kokshetau Airport, Kokshetau, Kazakhstan
  • KPB, Point Baker Airport, Point Baker, Alaska, United States
  • KPC (PAPC): Port Clarence Coast Guard Station, Port Clarence, Alaska, United States
  • KPS, Kempsey Airport, Kempsey, New South Wales, Australia
  • KQB, Koonibba Airport, Koonibba, South Australia, Australia
  • KRG (SYKS): Karasabai Airport, Karasabai, Guyana
  • KRK (EPKK): John Paul II International Airport, Kraków, Poland
  • KRM (SYKR): Karanambo Airport, Karanambo, Guyana
  • KRN (ESNQ): Kiruna Airport, Kiruna, Sweden
  • KRO (USUU): Kurgan Airport, Kurgan, Russia
  • KRP (EKKA): Karup Airport, Karup, Denmark
  • KRQ, Kramatorsk, Kramatorsk, Ukraine
  • KRR (URKK): Pashkovsky Airport, Krasnodar, Russia
  • KRS (ENCN): Kristiansand Airport, Kjevik, Kristiansand, Vest-Agder, Norway
  • KRT (HSSS): Khartoum International Airport, Khartoum, Sudan
  • KSA (PTSA): Kosrae International Airport, Kosrae, Federated States of Micronesia
  • KSC (LZKZ): Košice Airport, Košice, Slovakia
  • KSD (ESOK): Karlstad Airport, Karlstad, Sweden
  • KSH (OICC): Kermanshah Airport, Kermanshah, Iran
  • KSM (PASM): St. Mary's Airport, St. Mary's, Alaska, United States
  • KSN (UAUU): Kostanay Airport, Kostanay, Kazakhstan
  • KSU (ENKB): Kristiansund Airport, Kvernberget, Kristiansund, Norway
  • KSW (LLKS): Qiryat Shemona Airport, Qiryat Shemona, Israel
  • KSY (LTCF): Kars Airport, Kars, Turkey
  • KTM (VNKT): Tribhuvan International Airport, Kathmandu, Nepal
  • KTN (PAKT): Ketchikan International Airport, Ketchikan, Alaska, United States
  • KTO (SYKT): Kato Airport, Kato, Guyana
  • KTP (MKTP): Tinson Pen Aerodrome, Kingston, Jamaica
  • KTS, Brevig Mission Airport, Brevig Mission, Alaska, United States
  • KTW (EPKT): Katowice International Airport, Katowice, Poland
  • KUA, Sultan Haji Ahmad Shah Airport (Kuantan Airport), Pahang, Malaysia
  • KUF (UWWW): Samara Kurumoch Airport, Samara, Russia
  • KUL (WMKK): Kuala Lumpur International Airport, Sepang (near Kuala Lumpur), Malaysia
  • KUN (EYKA): Kaunas International Airport, Kaunas, Lithuania
  • KUR (OARZ): Razer Airport, Kron Monjan, Afghanistan
  • KUS (BGKK): Metropolitan Area Airport, Kulusuk Island, Greenland
  • KUT (UGKO): Kopitnari Airport, Kutaisi, Georgia
  • KUV, Gunsan Airport, South Korea
  • KVB, Skövde Flygplats, Skövde, Sweden
  • KVC, King Cove Airport, King Cove, Alaska, United States
  • KVK, Kirovosk Airport, Russia
  • KVL (PAVL): Kivalina Airport, Kivalina, Alaska, United States
  • KWH (OAHN): Khwahan Airport, Khwahan, Afghanistan
  • KWI (OKBK): Kuwait International Airport, Kuwait City, Kuwait
  • KWJ: Gwangju Airport, Gwangju, South Korea
  • KWT: Kwethluk Airport, Kwethluk, Alaska, United States
  • KXF (NFNO): Koro Airport, Koro Island, Fiji
  • KYA (LTAN): Konya Airport, Konya, Turkey
  • KYK (PAKY): Karluk Airport, Karluk, Alaska, United States
  • KYU, Koyukuk Airport, Koyukuk, Alaska, United States
  • KYZ (UNKY): Kyzyl Airport, Kyzyl, Tuva, Russia
  • KZI (LGKZ): Kozani National Airport "Filippos" (Philippos Airport), Kozani, Greece
  • KZN (UWKD): Kazan International Airport, Kazan, Tatarstan, Russia
  • KZO (UAOO): Kyzylorda Airport, Kyzylorda, Kazakhstan