United reportedly sought merger with Delta before approaching American

United Airlines reportedly sought a merger with Delta Air Lines before turning to American Airlines, according to Investing.com. The report does not provide deal terms, timing, valuation, or confirmation from the companies, so the scope and seriousness of the approaches remain unclear.

The names in focus are UAL, DAL, and AAL. FY2025 revenue was $59.1B for UAL, $63.4B for DAL, and $54.6B for AAL; reported net margins were 5.7%, 7.9%, and 0.2%, respectively. Those figures highlight Delta's stronger reported profitability and American's much thinner margin profile.

A successful combination could strengthen network breadth and industry pricing discipline, particularly if consolidation reduces duplicated capacity. But airline mergers face substantial regulatory and integration hurdles, and the lack of disclosed terms makes it difficult to assess value transfer between shareholders.

The key questions are whether United's approach to Delta or American was actionable, how managements and regulators respond, and whether any transaction would improve economics rather than simply add scale. The reported outreach is therefore more relevant as a potential consolidation signal than as evidence of a defined transaction.