This is the 11383rd most frequent Korean word.
김해공항
Gimhae Airport.
In this sentence, '김해공항' is used as the subject and denotes the specific name of the airport.
김해공항은 부산과 가까운 공항입니다.
Gimhae Airport is an airport close to Busan.
Here, '김해공항에서' uses the airport name with a location particle to indicate the origin of departure.
나는 김해공항에서 출발하여 서울로 갔다.
I departed from Gimhae Airport and went to Seoul.
In this usage, '김해공항까지' incorporates the airport's name with the particle '까지', showing the destination.