airport_detail          Lookup full airport details based of a standard
                        airport input
airport_distance        Calculate great circle distance between two
                        airports
airport_location        Lookup airport location coordinates given a
                        standard airport input.
airport_lookup          Translate airport codes or names into other
                        standard airport formats
airportr                'airportr' package
airports                Table of airport detail data
airports_around         Lookup airports near specified coordinates
airports_near_airport   Lookup airports nearby other airports
city_airports           Return all airports serving an input city.
