ExpressJet Airlines LLC is a regional air carrier headquartered in College Park, Georgia, that holds an FAA Part 121 Air Carrier Certification. Historically operating as a regional partner for major airlines, the company transitioned in 2021 to launch "aha!" (Air-Hotel-Adventure), a leisure brand providing scheduled service between Reno-Tahoe International Airport and various West Coast cities. Owned by ManaAir LLC, the company previously operated a fleet of over 100 ERJ145 and 16 CRJ200 aircraft, maintaining extensive maintenance records and specialized aircraft parts inventory.