METROPOLITAN AIRPORT AUTHORITY OF PEORIA (MAAP) is a municipal corporation created under the laws of the State of Illinois. MAAP owns and operates two airports: the General Wayne A. Downing Peoria International Airport and the Mt. Hawley Auxiliary Airport. General Wayne A. Downing Peoria international (PIA) proudly provides non-stop service on three airlines: Allegiant, American & United, to 12 convenient locations. With FREE parking and shuttle service, we make it easy to Fly Local! FlyPIA! Mt. Hawley Auxiliary Airport offers full service for business and general aviation. Mt. Hawley boasts a 4,000 ft. runway, hangar rentals, self-service fuel and flying lessons.