April 27 (Reuters) - United Airlines said on

Monday it had ended its pursuit of a merger with American

Airlines ( AAL ) after it declined to engage following an

initial approach.

"I was hoping to pitch that story to American, but they

declined to engage and instead responded by publicly closing the

door," United CEO Scott Kirby said.

Kirby raised the idea of a combination with American during

a meeting with U.S. President Donald Trump in late February,

people familiar with the matter told Reuters earlier this month.

The meeting was scheduled to discuss the future of

Washington's Dulles airport.

Combining two of the largest U.S. network carriers would

have marked the biggest consolidation move in more than a

decade, further tightening a domestic market already dominated

by four similarly sized players.

However, the scale of a potential tie-up raised concerns

among analysts and experts about the antitrust implications of

such a deal.

(Reporting by Shivansh Tiwary in Bengaluru; Editing by Shinjini

Ganguli)