At full capacity, Beijing Daxing International Airport would be the world’s largest single terminal in terms of traveler capacity, according to its designers. AFP

Beijing, China (AFP) — Beijing’s new futuristic airport that resembles a giant starfish — opened days before the country celebrates the 70th anniversary of communist rule — promises to transform the Chinese capital into a major Asian aviation hub.

Located 46 kilometers (29 miles) south of Tiananmen Square, Beijing Daxing International Airport will be able to handle 45 million passengers by 2021, with plans for 72 million by 2025 and 100 million by 2040.

It was opened by President Xi Jinping Wednesday, but had an immediate hitch when its maiden commercial flight — an A380 superjumbo heading to the southern city of Guangzhou — was delayed by nearly 30 minutes.

About a decade ago, Daxing was a sleepy suburb of dusty farmland and cramped quarters home to migrant workers building roads and skyscrapers in the city.

Now — with the airport code PKX ­— Daxing is seen as an embodiment of the “Chinese dream” Xi has offered his fellow citizens.

At 700,000 square meters (173 acres) — about the size of 100 football pitches — the new structure will be one of the world’s largest airport terminals.

So far only China United Airlines has shifted their operations to the new hub but operations manager Wang Qiang said another seven domestic and eight international airlines would arrive in the “near future.”

British Airways, Cathay Pacific and Finnair have already announced new routes to tap into its potential.

The SkyTeam alliance — which includes Delta, Air France and Dutch airline KLM — was also expected to move, along with local partners Eastern Airlines and China Southern Airlines.

The building was designed by Iraqi-British architect Zaha Hadid, who died in 2016.

The central atrium, with curves like a rolling landscape, is supported by eight giant columns and skylights filling the terminals with natural light.

Relatives and friends can also watch as their loved ones proceed to boarding gates through a viewing gallery.

An underground train station and metro line will allow travelers to reach Beijing city within 20 to 30 minutes.