Qantas cancel flight, passengers can follow a few steps. Firstly, they need to visit the Qantas website or contact Qantas customer service. Depending on the fare type, cancellation fees and refund eligibility may apply. Passengers can request a cancellation and apply for a refund or credit, subject to the fare rules and conditions. The ability to cancel and receive a refund may vary based on the ticket type and time of cancellation. It is advisable to review the specific terms and conditions associated with the ticket and contact Qantas for further guidance and assistance in cancelling a flight.