Pinnacle Airlines was a regional airline based in the United States, primarily operating as a feeder for major carriers like Delta Air Lines. Founded in 1985, it provided essential services to connect smaller airports with larger hubs, enhancing air travel accessibility for many passengers. In 2012, Pinnacle Airlines filed for bankruptcy and underwent restructuring. The airline eventually rebranded as Pinnacle Airlines Corp. and continued to operate under the Delta Connection brand, maintaining its role in the regional airline market until its eventual merger with SkyWest Airlines in 2018.