The reigning champions, who are set to play Colombia for a place in the semis, have already complained about the traffic in Brazil and were held up between their hotel and the Corinthians arena.
The game, originally scheduled for an 8 p.m. kick-off, had been put back to 8:20 p.m., the Chilean team tweeted.
The delay is the latest issue to tarnish this year's Copa America, with coaches and teams criticising the state of the pitches and fans inside stadiums upset at the constant stoppages for the Video Assistant Referee.
Thousands of tickets have gone unsold for the Copa, the first to be held in Brazil since 1989.
(Editing by Peter Rutherfordpeter.rutherford@thomsonreuters.com; +822 3704)
