All Airports of
- Cayenne Rochambeau
- Country: French Guiana
- International airport in French Guiana
- Rating:
- Calabar Margaret Ekpo International
- Country: Nigeria
- Airport serving the Cross River State in southeastern Nigeria
- Rating:
- Kalamata Vassilis Constantakopoulos
- Country: Greece
- International airport serving the southern part of the Peloponnese region
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- Calgary International
- Country: Canada
- International airport in Calgary
- Rating:
- Cali Alfonso Bonilla Aragon International
- Country: Colombia
- International airport serving Cali and its suburbs
- Rating:
- Kalibo
- Country: Philippines
- International airport serving Kalibo and the province of Aklan
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- Kaliningrad Khrabrovo
- Country: Russia
- International airport serving Kaliningrad in western Russia
- Rating:
- Kaluga
- Country: Russia
- International airport in Central Russia
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- Cagliari-Elmas
- Country: Italy
- Main international airport of the island of Sardinia
- Rating:
- Canaima
- Country: Venezuela
- Small airfield in Canaima National Park
- Rating:
- Canberra
- Country: Australia
- International airport of Australia's capital city
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- Kandahar International
- Country: Afghanistan
- Airport near Kandagar city serving civil and military flights
- Rating:
- Kansas City International
- Country: United States
- International airport 15 miles northwest of downtown Kansas City
- Rating:
- Cancun International
- Country: Mexico
- Main airport on the Caribbean coast of Mexico, biggest in Central America for international passengers
- Rating:
- Kano International
- Country: Nigeria
- Main airport serving northern Nigeria, full name - Mallam Aminu Kano International Airport
- Rating:
- Karagandy International
- Country: Kazakhstan
- International airport in northern Kazakhstan
- Rating:
- Caracas Simon Bolivar International
- Country: Venezuela
- Major international airport in Venezuela serving the capital of the country
- Rating:
- Karakol International
- Country: Kyrgyzstan
- Regional airport in eastern Kyrgyzstan
- Rating:
- Karachi Jinnah International
- Country: Pakistan
- Largest airport in Pakistan, formerly Quaid-e-Azam International Airport
- Rating:
- Cardiff
- Country: United Kingdom
- International airport serving Cardiff, South Wales
- Rating:
- Karlovy Vary
- Country: Czech Republic
- International airport serving Karlovy Vary in western Bohemia
- Rating:
- Karlsruhe/Baden Baden
- Country: Germany
- International airport serving Karlsruhe and Baden Baden
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- Karlstad
- Country: Sweden
- Regional airport serving Karlstad in central Sweden
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- Karpathos Island National
- Country: Greece
- Small international airport on the island of Karpathos
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- Cartagena Rafael Nunez International
- Country: Colombia
- Main airport in northern Caribbean region of Colombia
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- Cartersville
- Country: United States
- Regional airport in the state of Georgia in the southeastern United States
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- Karshi
- Country: Uzbekistan
- Small regional airport in Karshi
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- Casablanca Mohammed V International
- Country: Morocco
- Largest and busiest airport in Morocco
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- Cascavel
- Country: Brazil
- Regional airport serving Cascavel in southern Brazil
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- Castellon–Costa Azahar
- Country: Spain
- International airport serving Castello province in eastern Spain
- Rating:
- Castries George F. L. Charles
- Country: Saint Lucia
- Smaller of two airports in Saint Lucia, formerly Vigie Airport
- Rating:
- Catania Fontanarossa
- Country: Italy
- International airport serving Catania
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- Caticlan Godofredo P. Ramos
- Country: Philippines
- Small airport serving the municipality of Malay and the island of Boracay
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- Kathmandu Tribhuvan International
- Country: Nepal
- Sole international airport in Nepal
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- Katowice
- Country: Poland
- International airport serving Katowice
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- Kaunas
- Country: Lithuania
- International airport serving Kaunas
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- Kahului
- Country: United States
- International airport serving the island of Maui in Hawaii
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- Kajaani
- Country: Finland
- Small international airport of Kajaani in central Finland
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- Gwangju Muan International
- Country: Korea - South
- International airport in southwestern Korea serving the cities of Gwangju, Mokpo and Naju
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- Quebec City Jean Lesage International
- Country: Canada
- International airport serving the capital city of Quebec province
- Rating:
- Cape Town International
- Country: South Africa
- Primary airport serving the the Cape Town metropolitan are
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- Kelowna International
- Country: Canada
- International airport serving Kelowna
- Rating:
- Cambridge
- Country: United Kingdom
- Small regional airport in the east of England, the official name - Marshall Airport Cambridge UK
- Rating:
- Kemerovo Alexei Leonov
- Country: Russia
- International airport serving Kemerovo in western Siberia
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- Kenmore Air Harbor
- Country: United States
- Regional airport in Kenmore
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- Kerkyra Corfu Ioannis Kapodistrias
- Country: Greece
- International airport serving the Greek island of Corfu in the Ionian Sea
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- Cephalonia International
- Country: Greece
- Small international airport on the island of Cephalonia in western Greece
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- Qeshm International
- Country: Iran
- International airport serving Qeshm Island in the Strait of Hormuz in southern Iran
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- Cologne Bonn
- Country: Germany
- International airport serving the Cologne/Bonn region
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- Kigali International
- Country: Rwanda
- Main air gateway to Rwanda, formerly known as Gregoire Kayibanda International Airport
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