Jetstar’s new overhead baggage rules explained: When they start and what you'll pay

Storing carry-on baggage in overhead lockers on Jetstar flights will cost up to $52 one-way, as the budget airline announces new charges for passengers.

Jetstar chief executive Stephanie Tully says the changes to the airline's carry-on baggage allowances will streamline boarding and help more flights depart on time.

"Our new carry-on baggage model provides more choice to customers while helping to keep our fares low," Tully added.

"You only pay for what you need — travelling with less means paying less, and you can always add more if you need."

The changes follow "extensive research and feedback from customers and crew" which found frustrations with weighing bags and finding enough room in overhead lockers, Jetstar said.

What's changing and what you'll pay now

From 2 February, Jetstar will lift its 7kg carry-on weight limit in favour of a size-based carry-on baggage model.

Cabin baggage scales used to weigh passengers' carry-on bags before boarding will no longer be "routinely" used, the airline said.

Passengers will be able to bring one small bag to place under the seat, such as a backpack, handbag or laptop bag. That bag can weigh up to 10kg and be up to 40 x 30 x 20cm. Any bags larger than that will incur a fee.

Passengers who want to store a larger carry-on bag in overhead lockers will be charged between $25 and $52 one-way, depending on the flight route, for "limited" priority carry-on.

Jetstar said the fee for a one-way flight from Launceston to Sydney would start at $25, rising to $33 for a one-way flight between Sydney and Melbourne and $52 for a one-way flight between Cairns and Tokyo.

Priority boarding will be provided for passengers who pay for the carry-on option.

If you're travelling with an infant, you can bring an extra under-the-seat bag at no extra cost.

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