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United Airlines proposes merger with American Airlines to create world's largest airline

2 sources · 14 Apr 2026 · Share coverage ·

United Airlines CEO Scott Kirby presented a merger proposal with American Airlines to the US government. The merger would create the world's largest airline, combining two of the four major US carriers.

The U.S. airline industry is highly concentrated, with four major companies controlling most domestic traffic. The proposal comes at a time of rising fuel costs and industry instability, creating opportunities for stronger companies to gain market share.

1. What we know (6)

Scott Kirby, CEO of United Airlines, presented a merger proposal with American Airlines to the US government

2 sources Exame Valor Econômico

Kirby was president of American Airlines before becoming United's CEO in 2016

2 sources Exame Valor Econômico

Both companies are among the four major US airlines

2 sources Exame Valor Econômico

The US airline industry is facing rising fuel costs

2 sources Exame Valor Econômico

A merger would require approval from US regulatory authorities

2 sources Exame Valor Econômico

Transportation Secretary Sean Duffy stated that any deal would be analyzed for consumer impacts

2 sources Exame Valor Econômico
2. Where coverage thins out (5)

Covered by only some sources, or where the accounts diverge.

Covered by only some sources (5)

American Airlines shares rose more than 5% in after-hours trading following the news

Reported by: Valor Econômico
Did not cover: Exame

American Airlines has a market capitalization of $7 billion, compared to United's $31 billion

Reported by: Valor Econômico
Did not cover: Exame

American Airlines faced pressure from unions due to below-expected results earlier this year

Reported by: Valor Econômico
Did not cover: Exame

United and American together control more than one-third of the domestic market

Reported by: Exame
Did not cover: Valor Econômico

Each of the four major airlines has approximately 17% of the domestic market

Reported by: Valor Econômico
Did not cover: Exame
3. What we don't know yet

No gaps declared — all sources converge on the material facts.

All sources

2