Average daily number of passengers at Incheon Airport in South Korea 2019, by day
In September 2019, South Korea's Incheon International Airport had on average the most passengers among the top four Korean airports every day of the week. Incheon Airport had approximately two to three times as many passengers as Jeju Airport, South Korea's second largest international airport. This is not unusual as Incheon Airport is South Korea's primary, biggest, and busiest international airport, and also replaced Gimpo Airport as the capital area's primary airport upon its completion.