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You arrive on the airport in loads of time to test in. You attain the departure gate early. You board, strolling right down to your seat – and that’s if you uncover the overhead lockers are already full.
An excessive amount of carry-on baggage can considerably delay departures, as cabin crew attempt to squeeze every part in – or ship baggage right down to the maintain.
As a former pilot turned aviation security researcher, clearer guidelines for carry-on baggage are welcome, not least as a result of an excessive amount of cabin baggage is an actual security concern.
However as extra airways set carry-on limits, why are there completely different baggage guidelines for various airways?
New guidelines for carry-on in Australia and past
On February 2, 2026, Virgin Australia modified their carry-on baggage coverage for home flights.
Economic system passengers might be restricted to 1 standard-sized cabin bag for the overhead locker, weighing as much as 8kg. A small, private merchandise that may match beneath a seat can even be allowed.
Worldwide airways are additionally adjusting their carry-on baggage guidelines. A couple of 12 months in the past, Air Canada restricted primary fare passengers to only one private article for flights throughout North and Central America.
However the guidelines are complicated.
You would fly on the identical kind of aircraft from Sydney to Melbourne – corresponding to a widely-used Boeing 737 – however relying on the airline and what you paid in your ticket, you’ll have fully completely different bag and weight restrictions.
If you happen to fly with Qantas inside Australia, your carry-on must be:
Finances provider Jetstar is completely different once more, permitting as much as 7kg of carry-on baggage allowance, shared throughout two objects.
So, how do airways really set bag and weight limits?
Why passenger and baggage weight issues
Every plane has a most take-off weight, which may’t be exceeded to make sure it’s a secure flight. That complete contains the burden of the aircraft, plus gas, food and drinks provides within the galley, any cargo, the burden of the pilots and cabin crew, and the burden of the passengers and baggage.
Checked baggage is weighed on the check-in desk or bag drop. However what about carry-on baggage?
If a aircraft is small, with fewer than seven passengers, precise passenger weights are wanted. If you happen to fly in distant components of Australia – corresponding to island-hopping within the Torres Strait – it’s important to weigh your self, alongside along with your baggage, on the airport.
However for greater planes on busier routes, Australian rules enable a median passenger weight to calculate the whole passenger weight.
Firstly of my flying profession in 1998, the regulated customary weight for passengers flying in Australia was 77kg per particular person (excluding carry-on baggage).
However as folks’s common weight has elevated, the regulation has tried to maintain up.
For planes with a most seating capability of 150-299 seats, like a Boeing 737, the present customary weight of an grownup male passenger is assumed to be 81.8kg, whereas it’s 66.7kg for grownup ladies.
Then the usual weight for carry-on baggage is 7kg per passenger.
Nonetheless, the regulation additionally permits particular person airways to hunt approval for their very own passenger and cabin baggage weights. That must be permitted by the regulator, the Civil Aviation Security Authority.
That enables completely different airways to have completely different guidelines round cabin baggage.
Billions of {dollars} for baggage and different extras
Carry-on baggage guidelines was far more customary.
However the rise of low-cost airways modified all that, charging for additional baggage, in-flight WiFi and food and drinks as ancillary income: principally something past the fundamental ticket.
The Worldwide Air Transport Affiliation forecast ancillary income (together with for additional baggage) might be price US$144 billion (round A$220 billion) this 12 months. That’s greater than the worth of transporting cargo world wide by air.
Natasha Heap is a Program Director for the Bachelor of Aviation on the College of Southern Queensland.
This text is republished from The Dialog beneath a Artistic Commons license. Learn the unique article.
Right this moment, how a lot you’ll be able to pack normally will depend on the fare or upgrades you select.
Many passengers attempt to keep away from ancillary charges by taking every part as carry-on. However airways know this, in order that they cost passengers additional for exceeding carry-on limits.
Lighten your load for a safer journey
Carry-on baggage is a literal ache for cabin crew, who continuously undergo again and lifting accidents whereas serving to passengers stow heavy baggage in overhead compartments.
Past bodily threat, crew members need to cope with the time-consuming congestion of passengers scuffling with giant objects throughout boarding.
In an emergency, passengers stopping to seize baggage reasonably than leaving them behind has been confirmed to decelerate evacuations.
So the following time you’re on the point of journey, keep in mind: if you wish to take off on time and be safer in an emergency, pack lighter.
Your cabin crew will thanks for it.
