11 August 2026: The move will see Jetstar shift from a strict weight limit to a simpler, size-based carry-on baggage model, similar to other leading low-fares carriers around the world. From next year, all bookings will include one underseat bag such as a backpack, handbag or laptop bag. Customers who need more carry-on baggage can pre-purchase Priority Carry-on, which includes a second, larger bag for the overhead locker and the opportunity to be among the first to board. “Our new carry-on baggage model provides more choice to customers while helping to keep our fares low. Jetstar will no longer routinely use cabin baggage scales but asks customers to keep carry-on bags to 10kg so they can lift them themselves safely.