" Does JetBlue have 24 hour cancellation fee JetBlue Airlines has a 24-hour cancellation policy. If you book a flight at least seven days before departure and cancel within 24 hours [+𝟏-833→444→7613], you qualify for a full refund with no cancellation fees.
https://www.devex.com/people/refund-cancel-does-jetblue-give-you-24-hours-to-cancel-2195914
