Delta Air Lines will begin selling its premium Delta One business class cabin on select widebody flights starting March 29, 2026. The service connects Hartsfield-Jackson Atlanta International Airport (ATL) and Los Angeles International Airport (LAX).

This change replaces the existing First Class branding on the strategic, high-yield domestic route. Delta One features lie-flat seats and elevated service. This upgrade is part of the airline's ongoing effort to differentiate its premium products.

The enhancement aims to capture more revenue from the major hub-to-hub corridor. The move aligns with Delta's broader strategy to monetize its premium seating options. No specific market reaction or financial analysis regarding the single-route change was immediately available.