Westjet Airlines Cancelation Number is being used because it is a unique identifier for the airline. The cancellation number is used by customers and agents to identify a cancelled flight. WestJet Airlines Cancelation Number is being used because it is a number that is easy to remember. When customers are looking to cancellate their flights, they can simply dial WestJet Airlines Cancelation Number and it will connect them with the right customer service agent who can help them cancel their flight. Westjet Airlines Cancelation Number is being used because it is a unique identifier that can be traced back to the airline. This identifier can be used to identify the reason for the cancellation and help the airline make refunds to passengers.