JetBlue's 24-hour cancellation policy allows customers to cancel their reservations and receive a refund amount. This policy is applicable for all fares and is free of charge. However, the policy does not apply to non-refundable tickets. Policies are changed with time so make sure that JetBlue 24 hour cancellation policy is not changed. You can learn more visit the Flying Rules official website or call +1-800-865-1848 for further assistance.