Jetstar pilots will take industrial action this weekend after other airline staff walked off the job amid a pay and safety dispute.
The Australian Federation of Air Pilots says the union's Jetstar pilots will undertake four-hour work stoppages on Saturday and Sunday and a range of lower-level bans from 14 to 20 December.
Jetstar plans to cancel 44 services on Saturday and 46 on Sunday.
The pilots' action comes after baggage handlers and ground staff stopped work on Friday at Sydney Airport, Melbourne's Tullamarine and Avalon airports, and in Brisbane, Cairns and Adelaide.
The budget airline rejected workers' demands for pay increases, minimum hours on the job and safety improvements.
Jetstar said the disruption had not badly affected flights on Friday because they had minimised fallout by cancelling 30 services in advance.
Workers who walked off the job on Friday have pledged to do it again next Thursday should their demands not be met.
The company says customers travelling from 13 December to 20 December can request a full refund prior to flying.