United Airlines explored combining with Delta Air Lines in 2025.
The proposal surfaced amid broader industry consolidation talks.
The Wall Street Journal, Crain's Chicago Business and Seeking Alpha said this happened.
Industry analysts described the potential merger as significant.
United engaged bankers to weigh the move.
After months of talks, United chose to talk to American Airlines instead.
The shift prompted a reassessment of its merger strategy.
No deal was ultimately struck with Delta.
All discussions ended and nothing more emerged from it.
Sources stay quiet about any future partnership plans.
Investors watch the airline's next moves closely.
The market responded with modest activity.