Mesaba Airlines

Mesaba Aviation, Inc. was a regional airline in the United States that operated from 1944 until it merged with Pinnacle Airlines in 2012 to form Endeavor Air. It was based in Eagan, Minnesota. From 2010 to 2012, the airline was a wholly owned subsidiary of Pinnacle Airlines Corp. with code sharing flights operated as Delta Connection for Delta Air Lines and US Airways Express for US Airways. Previously, the airline operated code sharing service as Northwest Airlink and Northwest Jetlink on behalf of Northwest Airlines which subsequently merged with Delta. Mesaba also previously operated connecting flight services in association with Republic Airlines before this air carrier was subsequently merged into Northwest. Mesaba Airlines effectively ceased operations on January 4, 2012, when all aircraft and personnel were transitioned to the Pinnacle Airlines operating certificate. Mesaba's operating certificate was surrendered on July 31, 2012.

Summary from Wikipedia, licensed under CC BY-SA.