Budget airline Jetstar has announced a significant shift in its carry-on baggage policy, moving away from a weight-based limit to a system primarily defined by bag dimensions. Under the existing rules, passengers are restricted by both the size of their luggage and a specific weight limit, which has historically required staff to weigh bags at the gate. The new policy aims to streamline the boarding process by prioritizing the physical size of the bags to ensure they fit within overhead lockers.

While the airline has framed this as a move toward operational efficiency, the change represents a broader industry trend among low-cost carriers to standardize cabin baggage. Passengers will still be required to adhere to strict dimension guidelines, and the airline has indicated that items exceeding these limits will be subject to checked baggage fees. The transition is intended to reduce delays caused by checking bag weights during the boarding process, though critics suggest it may lead to more stringent enforcement of bag dimensions at the gate. Jetstar has not yet provided a comprehensive breakdown of how this will affect passengers with specific medical equipment or those who previously relied on the weight-based allowance for smaller, denser items. The airline maintains that the change will ultimately benefit the majority of travelers by speeding up the boarding sequence.