United Airlines Quietly Explored Megamergers with Delta and American

In a bold bid to reshape the U.S. aviation landscape, United Airlines Chief Executive Scott Kirby secretly approached rival legacy carriers Delta Air Lines and American Airlines over the past year to explore potential merger opportunities.

The ambitious overtures, initially reported by The Wall Street Journal, sought to combine two of the nation’s largest network carriers. Kirby personally contacted Delta Chief Executive Ed Bastian last year to pitch a massive tie-up. While Delta leadership conducted preliminary due diligence to evaluate the commercial potential, discussions stalled and both airlines ultimately abandoned the idea.

Following the dead end with Delta, Kirby directed similar merger proposals toward American Airlines earlier this year. That pitch met immediate resistance, with American Airlines Chief Executive Robert Isom rejecting the offer outright and characterizing a potential union between the legacy competitors as explicitly anticompetitive.

Delta declined to comment on the talks, while a United spokesperson stated the company had nothing to share.

Had either proposal advanced, it would have represented an unprecedented consolidation in commercial aviation. The U.S. domestic market is heavily anchored by four dominant carriers—Delta, United, American, and Southwest Airlines. Merging two legacy giants would have triggered intense regulatory battles with state attorneys general and federal antitrust officials.

The federal regulatory environment has tightened significantly, with the U.S. Department of Justice successfully taking legal action to block airline deals, including JetBlue’s attempted takeover of Spirit Airlines and the Northeast Alliance between American and JetBlue. In light of these enforcement actions, analysts viewed a combination of two major network carriers as virtually unapproachable from a legal standpoint.

In the wake of the spurned proposals, Kirby has publicly downplayed the prospect of further consolidation. Speaking at the International Air Transport Association annual meeting in Rio de Janeiro, Kirby acknowledged that major merger deals carry a low probability for United.

While ruling out transformative corporate mergers, Kirby clarified that United remains active in pursuing strategic growth by acquiring individual assets, including airport gates, takeoff and landing slots, and ground infrastructure.