Lawmakers in Beijing approved Friday a government plan to issue additional bonds worth 6.7 billion yuan ($1.05 billion) to finance the building of the new airport.
Around 4 billion yuan of the bonds will be used to support land expropriation and housing demolition in the project, Li Yingjin, head of the municipal finance bureau, said in a report to the municipal people's congress on adjustment to the 2015 budget.
The construction of the new airport in southern Beijing's Daxing district started in December 2014.
The airport is designed to handle 72 million passengers and 620,000 flights by 2025.