Singapore Airlines cancellation policy allows passengers to cancel their flights, subject to certain conditions. If the ticket is refundable, passengers may be eligible for a refund, less any applicable fees, depending on the fare rules. Non-refundable tickets are not eligible for a refund, but passengers may receive a credit toward future travel. The cancellation fee and refund amount may vary depending on the type of ticket, the class of reservation, and the time of cancellation. Singapore Airlines may also offer waivers or exceptions during unforeseen circumstances, such as flight disruptions or travel restrictions. Passengers are advised to review the specific cancellation policy associated with their ticket and to contact Singapore Airlines directly for further assistance.