All chosen fare options, cabin classes, and service classes are subject to Allegiant's cancellation policy. There are other prerequisites and limitations that you should be aware of before cancelling the flight. Additionally, the Trip Flex programme may have different cancellation policies. According to Allegiant Airlines cancellation policy, customers can cancel their reservation for a full refund if they do so within 24 hours after making the purchase. You must keep in mind that at the time of booking, the departure date must be at least one week away. The tickets are not refundable and cannot be transferred after 24 hours. A credit voucher will be given for eligible cancellations, and it can be used for up to a year following the original booking date.

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