The time limit for canceling a Delta flight without penalty is 24 hours from the time of booking. During this period, you can cancel any ticket, including non-refundable ones, for a full refund. This gives travelers flexibility and assurance that they won’t lose money if their plans change shortly after booking.
Beyond the 24-hour window, cancellations for non-refundable fares typically incur fees, and basic economy tickets have stricter policies, often limiting refund options to credits for future travel. Be sure to act quickly if you need to cancel within this grace period.