Under the JetBlue cancellation policy you can cancel all kinds of flight tickets (except Blue Basic) without penalty. However, in case you cancel a non-refundable air ticket, you will obtain a JetBlue Travel Bank Credit, commonly valid for one year from the initial reservation date. For further information regarding the policy, you need to either contact the airline’s customer support or move to the website. Additionally, you can call +1-800-865-1848 (OTA) to get your queries answered immediately.