Hong Kong International Airport suspended check-in operations for a second day after protesters blocked the gates to the security and immigration areas.
Footage on social media showed protesters using luggage trolleys as barriers to block passengers from entering the departure terminal.
"Terminal operations at Hong Kong International Airport have been seriously disrupted as a result of the public assembly at the airport today," the Airport Authority (AA) said in a statement.
Just hours earlier, the city's leader Carrie Lam said the violent protests had pushed Hong Kong into "a state of panic and chaos".

Israel carries out rare airborne raid in Lebanon; 16 killed in strikes
US skips congressional review to approve arms sale to Israel
Flash floods in Nairobi kill 23, disrupt flights at major airport
Russia hits Ukraine with drones, missiles, kills at least 10 in Kharkiv
Partial resumption of air navigation in Qatar
