Many times it happens that you have to seek the cancellation of your plane ticket. Some time before and sometimes at the last moment. It is always better that you know the conditions and fees that you have to pay for making a cancellation request. At some point, you may not be able to cancel your flight at all. So, if you booked your ticket with Singapore Airlines and now have to cancel it, you can do so by following the Singapore Airlines Cancellation Refund Policy .