Founded in 1926, Northwest Airlines commenced operations in 1934. Northwest Airlines Corp was a major United States
airline that got absorbed into Delta Air Lines Inc. by a merger. Approved on October 29, 2008, the merger made Delta, the largest airline in the world. The airline continued to operate under its own name until the integration of the carriers was completed on January 31, 2010. Prior to its merger with Delta, Northwest was the world's sixth largest airline in terms of domestic and international scheduled passenger miles flown and the US's sixth largest airline in terms of domestic passenger miles flown. Regional flights for Northwest were operated under the name Northwest Airlink by Mesaba Airlines, Pinnacle Airlines, and Compass Airlines. Northwest Airlines is headquartered in Eagan, Minnesota. Northwest Airlines’ has its three major hubs at Detroit Wayne County Airport, Memphis International Airport, and Minneapolis- Saint Paul International Airport.