Planedemonium At Aussie Airports As IT Drama Hits Jetstar Flights

An IT outage has left hundreds of Jetstar customers stranded at airports around the country.

International and domestic Jetstar passengers were told to expect delays on Tuesday as computer issues left commuters waiting for up to four hours.

The airline has had to cancelled 32 international and domestic flights due to the issue.

Passengers have been left stranded after dozens of cancelled flights. Image: Jetstar

"An IT issue is affecting some of our airport systems today, resulting in a number of delays and some cancellations to our domestic and international flights," Jetstar said in a statement.

"Our technicians are working to resolve the issue as soon as possible.

"We know delays are frustrating and we’re really sorry for the impact to customer journeys."

Jetstar said customers on the affected flights are entitled to a refund or can contact the airline to change travel dates at no extra cost.

Some flights our of Sydney have been delayed by up to four hours. Image: Sydney Airport

Passengers have taken to social media to vent their frustration at the airline as delays continue.

Photos of airports around the country show stranded passengers queuing to check in.

Just after 11am, Jetstar said some systems were "coming back up online".

"Our airport systems are progressively coming back online and we are working to resume normal operations as soon as possible," it said.

Jetstar has been contacted for further comment.

On Friday, passengers can expect more delays as Jetstar's baggage handlers and ground crew will walk off the job across Australia with their union saying workers are taking a stand against "poverty wages" and underemployment.

The strike planned for Friday -- less than two weeks out from Christmas -- comes after the budget airline rejected workers' demands for pay increases, minimum hours on the job and safety improvements.

Speaking alongside workers at Sydney Airport on Tuesday, Transport Workers Union national secretary Michael Kaine said the airline needed to explain why it had rejected the "modest" requests.

"Jetstar won't listen when these workers say to them that they simply can't survive on 20 hours of work a week... when they make sure Jetstar knows they are on the lowest pay in the industry," Kaine said.

"They are finding it harder and harder to support their families and Jetstar won't listen when these workers repeatedly say their jobs are not safe because there are too few workers lugging around thousands and thousands of kilos of baggage and having to service overlapping aircraft."

Negotiations between Jetstar and the union broke down after the company rejected worker demands including more rest breaks, a guaranteed 12-hour break between shifts and a guaranteed 30 hours a week of work.

Jetstar staff will walk off the job on Friday at Sydney, Melbourne's Tullamarine and Avalon airports as well as Brisbane, Cairns and Adelaide airports.

In a statement released last week, Jetstar chief executive Gareth Evans said strong-arm TWU tactics would not change the airline's stance.

He said the union's demands would put "significant pressure" on the low fares the airline's customers rely on and force it to review its investment in new aircraft, technology and destinations.

With AAP.