Airport adjectives are listed in this post. Each word below can often be found in front of the noun airport in the same sentence. This reference page can help answer the question what are some adjectives commonly used for describing AIRPORT.
big, busiest, busy, civilian, closest, commercial, crowded
domestic, entire, first, free, international, large, largest
little, local, main, major, military, modern, municipal
national, nearby, nearest, new, old, only, orly
other, own, private, regional, same, small, smaller
Hope this word list had the adjective used with airport you were looking for. Additional describing words / adjectives that describe / adjectives of various nouns can be found in the other pages on this website.