United and American Airlines merger

The proposal comes as the industry grapples with soaring fuel costs and a systemic shortage of jet fuel in Europe due to the Middle East conflict.

Kirby argued that a merged entity would be better positioned to compete against state-backed foreign airlines on international routes.

However, critics warn that such a merger would lead to higher fares, more fees, and fewer options for passengers.

The Department of Justice is expected to launch a rigorous investigation into the deal's impact on domestic competition.