Airline adjectives are listed in this post. Each word below can often be found in front of the noun airline in the same sentence. This reference page can help answer the question what are some adjectives commonly used for describing AIRLINE.
american, class, commercial, cost
domestic, european, first, free
global, international, largest, local
major, many, national, new
only, other, own, regional
Hope this word list had the adjective used with airline you were looking for. Additional describing words / adjectives that describe / adjectives of various nouns can be found in the other pages on this website.