Here’s what flights are affected — and what airlines are offering customers.

Qantas

Lord Howe Island flights have already been suspended for the day. Flights to or from Ballina have also been suspended until Sunday morning.

The policy also applies for flights to or from Bundaberg, Coffs Harbour, Hervey Bay, Lord Howe Island and Maroochydore between 4 and 9 March.

The airline said it will update impacted customers via text message.

Virgin Australia

Virgin Australia has reduced its scheduled flights to and from Brisbane Airport until late Thursday afternoon.

“Virgin Australia’s meteorologists are closely monitoring Tropical Cyclone Alfred,” a spokesperson said.

Jetstar

Jetstar flights to or from Brisbane and the Gold Coast have been cancelled until the weekend. The airline has suspended international flights until midday Saturday and domestic flights until Sunday morning.

It’s advising customers to move their travel plans to before Thursday evening.

Rex

For flights to or from Brisbane Airport between 4 and 8 March, Rex passengers can rebook fee-free for a flight before 30 June or request a travel credit.

Rex has suspended all flights to and from the Brisbane Airport for Thursday and Friday.

Rex has cancelled nine flights scheduled to depart from or arrive at Brisbane Airport on Wednesday and suspended all flights to and from the airport for Thursday and Friday.

Further delays remain possible

“Airservices has put staff contingency plans and emergency operational assets in place, including backup power supplies, to help us provide necessary support to Australia’s aviation sector throughout the coming days.”