Korean Air, is the flag carrier airline of South Korea and the largest airline in South Korea based on fleet size, international destinations and international flight. The airline's global headquarters located in Seoul, South Korea Korean Air's international passenger division and related subsidiary cargo division together serve 130 cities in 45 countries, while its domestic division serves 20 destinations. It is among the top 20 airlines in the world in terms of passengers carried and is also the top-ranked international cargo airline. Incheon International Airport serves as Korean Air's international hub. Korean Air also maintains a satellite headquarters campus at Incheon.