Mesaba Airlines (Minneapolis St. Paul International) has been closed down by its parent Pinnacle Airlines (Memphis International) on January 4 when its 19 CRJ200s and 41 CRJ900s operating for Delta Air Lines (DL, Atlanta Hartsfield Jackson) as Delta Connection have been transferred to Pinnacle Airlines. It had already pulled all of its remaining Saab 340As out of service by the end of 2011.