Authorities warn people to plan their travels ahead of time as millions of people arrive in Queensland, Victoria and Northern Territory for the winter school holidays.
Airports across Australia are expected to be the busiest they have been since the outbreak of the COVID pandemic.
The industry is trying to get on top of a critical worker shortage and fill thousands of jobs.
Over the July school holidays, more than 2 million passengers are expected to pass through Melbourne Airport.
The same amount of people are expected to travel through Sydney Airport.
Brisbane Airport has 95 per cent of traveller volumes that are pre-pandemic.
There are estimated 55,000 passengers who are expected to board domestic flights over the next month.
There are about 9,000 people who are expected to head overseas from Brisbane today, which is a post-pandemic record.
How do I avoid airport stress?
Airport queues are not chaotic, despite reports of cancelled flights and missing luggage.
They're just really busy right now.
The airports have added extra staff to deal with the busier periods, with school holidays in Victoria, Queensland and Northern Territory beginning this afternoon.
The authorities are urging people to plan ahead to avoid stress and delays where possible.
If possible, travelling with hand luggage is a way to speed things up.
Travelling with hand luggage is an option, and it is also a way to skip the bag drop queue, according to the head of public affairs at Brisbane Airport, Stephen Beckett.
Arriving early is a good idea. Beckett recommends that travellers arrive at the airport at least two hours before their domestic flight or three hours before travelling internationally.
You can avoid a few headaches by booking a land transport taxi, rideshare or train ahead of time.
Travellers who are escaping the chilly southern states to Cairns have found themselves stuck waiting for a taxi or shuttle bus from the airport.
Beckett says planning how to get to and from the airport is a good idea.
He says passengers are being caught short waiting for taxis and Ubers.
Our strongest advice is to pre-book your land transportation or consider the Air Train when coming to the airport.