Xi declared the starfish-shaped airport open in brief remarks at a ceremony inside the huge terminal, days before the country holds a grand celebration to mark 70 years of Communist rule.

Located 46km south of Tiananmen Square, the Daxing International Airport will operate at full capacity in 2040, with eight runways and the potential to receive 100 million passengers per year.

The single-terminal airport is seen as a fitting embodiment of the “Chinese dream” Xi has offered his fellow citizens.

At 700,000sqm – about the size of 100 football pitches – the new structure will be one of the world’s largest airport terminals.

Underneath the terminal is a train station and metro line that will allow travellers to reach the city centre in 20 or so minutes.

The project cost 120 billion yuan, or 400 billion if rail and road links are included.