Want to cancel a JetBlue flight? Understand the cancellation policy to know whether you are going to receive a refund or travel credit. JetBlue’s cancellation fees vary depending on the fare type and the timing of the cancellation. Know the policy and minimise your losses. Have a smooth experience with JetBlue's cancellation policy. 

https://www.farehubdesk.com/cancellation/jetblue-cancellation-policy