Refunds usually depend on the class of ticket you purchased. Review ticket information before canceling your flight.
Cathay Pacific Cancellation Policy says Even after 24 hours, Cathay Pacific will give you a full refund if you purchased a refundable ticket.
Cathay Pacific will not issue any refund if you have booked a non-refundable ticket after 24 hours of cancellation.
Under no-show policy, if you are unable to reach the airport on time, you are not entitled to a refund for that ticket, which may be due to various reasons.