United Airlines CEO reportedly pitched merger with American, sparking competition fears

Critics warn of absolute disaster for the flying public' if two air travel giants try to combine

The CEO of United Airlines is said to have pitched a blockbuster merger with American Airlines during a meeting with Donald Trump, floating the combination of the world's two largest carriers.

Scott Kirby, who leads United, raised the prospect during an encounter with the US president in late February, Reuters reported, citing two unnamed sources. Such a deal would overhaul the global air travel industry - and likely face intense competition scrutiny.