Envoy Air Inc. (formerly American Eagle Airlines) is an air carrier based in Irving, Texas. It is a wholly owned subsidiary of American Airlines Group that, along with several carriers outside the group, feeds the American Airlines route network under the American Eagle brand. With over 1,800 flights a day, serving 159 cities across the United States, Canada, Mexico and the Caribbean, Envoy is considered to be the worlds largest regional airline system. Envoy is an affiliate member of the Oneworld airline alliance. The name "American Eagle Airlines" was also used between April 1980 and April 1981 by an unrelated air charter service that suspended operations and filed bankruptcy before flying any scheduled operations. Envoy began as a collection of regional carriers with contracts to carry the American Eagle brand name. The first American Eagle flight was operated by Metroflight Airlines, which was a wholly owned subsidiary of Metro Airlines (formerly Houston Metro Airlines), on November 1, 1984, from Fayetteville, Arkansas and Fort Smith, Arkansas to Dallas/Fort Worth International Airport. Metroflight utilized Convair 580 turboprop aircraft that had been formerly operated by Frontier Airlines. Other carriers that have flown in American Eagle livery include Executive Airlines, Command Airways, Air Virginia, Simmons Airlines, Chaparral Airlines and Wings West Airlines. Among other aircraft in its fleet, Chaparral flew Grumman I-C turboprops which were stretched, 37 passenger regional airliner versions of Grummans successful propjet business aircraft and was one of only a few air carriers to ever operate the type in scheduled passenger service.