Delta Air Lines is preparing to retire its highest-capacity Airbus A350-900 configuration, which features 339 seats. This layout, originating from aircraft previously operated by LATAM, will see its final scheduled revenue flight on October 25, 2025. According to Aeroroutes and Delta's schedule submission to Cirium Diio, the last flight using this configuration is expected to be DL73, departing Amsterdam at 10:00 and arriving in Atlanta at 13:34 local time.
The decision to phase out the 339-seat version follows Delta’s ongoing efforts to standardize its fleet with more premium offerings. The airline currently operates three configurations of the A350-900: a 275-seat high-premium layout, a standard 306-seat version, and the soon-to-be-retired 339-seater. Sixteen aircraft now have the new lower-capacity, higher-premium configuration; this number will rise as additional aircraft are reconfigured and as new deliveries arrive.
Delta acquired nine ex-LATAM A350s after LATAM filed for bankruptcy protection in May 2020 during the COVID-19 pandemic. The U.S. carrier saw an opportunity to purchase these relatively young widebody jets following its investment in LATAM in 2019 and subsequent retirement of Boeing 777s from its fleet. These ex-LATAM aircraft entered Delta service starting June 2022.