Thousands of black-clad protesters occupied the airport on Monday following a weekend of violence that saw police fire tear gas into subway stations and rubber bullets at close range. All flights in and out of China's Hong Kong Special Administrative Region were cancelled on Monday due to a protest held in the Hong Kong International Airport, according to local airport authority.
By Tuesday morning, numerous posters and signs the protesters had placed throughout the terminals had been taken down, but graffiti - some reading "an eye for an eye" - had not yet been cleared.
Two other flights from Chicago to Hong Kong and NY to Hong Kong were expected to arrive as scheduled, she said.
Authorities called the demonstrations illegal and unsafe, claiming that protests have hurt the already-faltering economy and residents' daily lives.
The protesters adopted the slogan for their demonstration at the airport after a women suffered a serious face injury, reportedly losing her sight in one eye, at demonstrations that turned violent on Sunday night.
The developments marked yet another dramatic escalation in a 10-week crisis that had already become the biggest challenge to the Chinese rule of Hong Kong since the 1997 British handover.
Hong Kong has experienced more than two months of mass protests calling for democratic reforms and an independent inquiry into police conduct in the wake of proposed legislation that would have sent people accused of a crime to mainland China for trial. But soon the aim of the protests widened to highlight other grievances, drawing broader support.