Hi there! I'm happy to provide you with some information about  JetBlue Cancellation Policy and  JetBlue Refund Policy.

For cancellations, JetBlue allows passengers to cancel their reservations for a full refund within 24 hours of booking. JetBlue also offers a free 24-hour grace period for all changes and cancellations made online. If you cancel your reservation within 24 hours of booking, you can receive a full refund. After 24 hours, you may be subject to a fee for cancellation.

When it comes to refunds, JetBlue will provide a full refund for   JetBlue Airlines Tickets flights cancelled within the 24-hour grace period. If your flight is cancelled by JetBlue, you are eligible for a full refund regardless of when you make the request. Additionally, if you are unable to travel due to a medical or family emergency, or if your flight is significantly delayed, you may be eligible for a refund.

If you have any further questions about JetBlue's cancellation and refund policies, please feel free to reach out to JetBlue customer service at +1-866-383-9353.

Thank you for your inquiry. Have a great day!