N309US took its first flight on August 8, 1990, and was delivered to Northwest Airlines, where it served until the airline's merger with Delta in 2008. After the merger, the aircraft continued to operate under Delta’s colors until its retirement in 2023, marking over three decades of service in commercial aviation.
The A320, known for its advanced technology and passenger-friendly design, has been a staple in Delta's fleet, operating on both domestic and short international routes. Delta utilized the A320 for its versatility and efficiency, making it a key player in connecting travelers across the country.
