United Airlines Holdings Inc.

(NASDAQ:UAL) approached Delta Air Lines Inc.

(NYSE:DAL) about a merger last year, pursuing a combination of America’s two most valuable carriers before CEO Scott Kirby’s later American Airlines Group Inc.

(NASDAQ:AAL) proposal triggered political and antitrust backlash.

United Quietly Pursued a Delta Megamerger The Wall Street Journal reported on Sunday, citing people familiar with the matter, that Kirby called Delta CEO Ed Bastian to pitch the transaction.