Add-on fees such as the new overhead locker baggage charge can make it harder to compare air fares, experts say

The low-cost carrier says weighing passengers’ bags is slowing down the boarding process, contributing to delays.

The airline will also begin charging a fee for guaranteed access to overhead bins, but is increasing its in-cabin weight allowance.

Jetstar Australia will start charging passengers for the use of overhead luggage bins from February next year.