Northwest family includes 13 airlines

According to the narrative of the NWA History Centre, there were 13 airlines represented in the history of Northwest Airlines. Following are excerpts from that history:

“During its first 60 years Northwest Airlines grew into one of the world’s legacy airlines without acquisitions or mergers. The Airline Deregulation Act of 1978 changed the rules of commercial aviation and Northwest began to adapt in order to survive and prosper. In 1986 Northwest merged with Republic Airlines. That merger made Northwest Airlines the head of a family of 12 airlines that had begun interstate commercial passenger...