Jetstar customers across Australia have experienced delays this morning as a result of an IT issue.
It's been a long morning for those waiting to catch a flight, with fog also causing delays for all flights in Sydney.
The Jetstar issue has left some customers unable to check-in to the flight's carrier services, with the issue first noticed at 9.30am this morning.
A Jetstar spokesperson told the Hit Newsroom that delays were over an hour at this stage, but systems are now back up and running.
An IT issue affected our airport systems this morning resulting in multiple flights experiencing delays of up to 90 minutes. Our technicians worked on the issue. All of our systems are now back up and running and flights operating normally. We appreciate delays are frustrating and apologise to customers for the impact to their journey.