Christmas travel plans for many Australians were thrown into chaos on Friday after dozens of domestic flights to and from Sydney were canceled.
At least 80 flights were affected, Sydney airport’s head of communications, Josh Clements, told CNN.
The domestic airlines that fly to and from Sydney are Qantas, Jetstar, Virgin, and Rex.
Rex said none of their domestic flights have been canceled Friday.
A Jetstar spokesperson attributed the late cancellations to “a large number of our frontline team members” being "required to test and isolate as close contacts." Jeststar did not comment on the number of flights canceled.
The airline apologized for impacting customers' travel plans and said they have rescheduled the majority of passengers onto later flights.
A spokesperson for Virgin Airlines said one Virgin Australia flight was canceled on Friday, with other schedule changes made earlier in the week.
The airline apologized for the late schedule changes but assured "all guests" will arrive at their "final destination" by the end of Friday.
A Qantas spokesperson said the airline rescheduled some of their domestic flights over the past two weeks in accordance with demand.