United Airlines announced that it had ended its pursuit of a merger with American Airlines after the rival declined to engage, a decision that ends the most significant consolidation effort in the U.S. airline market in more than a decade. The U.S. airline landscape is dominated by four similarly sized carriers, and a combined entity would have tightened competition and raised antitrust concerns. Analysts noted that the merger would have dramatically increased the total number of economy seats available, potentially reshaping the domestic market. Key figures from the discussion include the fact that the merger would have created additional American jobs and supported the U.S. economy, while also expanding the seat inventory. The deal would have been the largest consolidation move in the industry in over ten years. United CEO Scott Kirby said he had hoped to pitch the idea but American declined to engage and publicly closed the door. Kirby added: "American's public comments make it clear that a merger like this is off the table for the foreseeable future." American CEO Robert Isom flatly rejected the merger, calling it anti-competitive and bad for customers. Transportation Secretary Sean Duffy told Reuters earlier this month that if Kirby wanted to pursue a merger, he would need to do "a little more selling on why it's good for the American consumer." President Donald Trump stated he did not support a merger between the two airlines. "But with American it's doing fine, and United is doing very well. I know the United people, they're doing very well. I don't like having them merge," he said. Reporting by David Shepardson in Washington and Shivansh Tiwary in Bengaluru. Editing by Shinjini Ganguli and Mark Potter.