Bengaluru: In a candid assessment that has drawn attention across the aviation industry, Scott Kirby, CEO of United Airlines, said that Boom Supersonic’s Overture aircraft has only a “50-50 chance” of ever entering commercial service.
Speaking at Harvard University on March 5, Kirby’s remarks come as a surprise given that United is currently the largest customer for Boom’s supersonic jet program. The airline has agreed to purchase 15 Overture aircraft, with options for an additional 35, contingent on the company meeting strict safety and performance requirements.
The Overture, being developed by Boom Supersonic, aims to reintroduce commercial supersonic travel, a segment that has remained dormant since the retirement of Concorde in 2003. However, significant challenges remain.
Kirby highlighted key concerns, including the aircraft’s current design limitations, particularly its range, as well as the absence of a confirmed engine partner—both critical factors for the program’s success.
Industry experts have echoed similar skepticism. Aviation analyst Richard Aboulafia dismissed the project’s prospects, while others have questioned the timeline and feasibility of bringing a supersonic passenger jet back into service.
Despite the doubts, Boom has made notable progress. Its XB-1 demonstrator successfully broke the sound barrier in 2025, and the company has established a manufacturing facility in North Carolina. The order book reportedly includes 130 aircraft commitments from various airlines.
However, with no confirmed engine solution and an unclear certification timeline, the future of supersonic commercial travel remains uncertain.
Kirby’s “coin flip” remark underscores the high-risk, high-reward nature of the project, reflecting both the ambition and the challenges of reviving an era of faster-than-sound passenger travel.