Airline passengers are experiencing delays at Australian airports because of a failure of the check-in system used by Jetstar, Virgin and Tiger Airways.
The Navitaire check-in system failed on Saturday morning, creating delays as airline staff manually checked passengers in for flights.
Virgin Australia spokeswoman Melissa Thomson said the outage was affecting all Australian airports as well as online bookings and web check-in processes.
"We are working very very hard so we can get people on their way," Ms Thomson told AAP.
"People in our airports are being delayed as a result of the outage."