This is the 9401st most frequent Japanese word.
福岡空港
Fukuoka Airport.
Here, 福岡空港 is used to indicate the location where the arrival occurred, functioning as a proper noun.
福岡空港に着きました。
I arrived at Fukuoka Airport.
In this sentence, 福岡空港 is used as the subject of the sentence, referring to the airport itself.
福岡空港は九州にあります。
Fukuoka Airport is located in Kyushu.
Here, 福岡空港 defines the proximity to a location, acting as the place in relation to 'near'.