As per the Qantas Airline cancellation policy, travellers may cancel their flight tickets prior to their planned departure. If you do not meet the free cancellation requirements, you will be responsible for flight cancellation costs. According to certain terms & conditions, the airline waives cancellation charges if you cancel your ticket within 24 hours of booking. You should keep in mind some terms & conditions before cancelling your flight ticket. In this guide, you will get everything about the Qantas Airline cancellation policy. https://flightcancellationpolicy.com/qantas-airline-cancellation-policy