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