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Allegiant Airlines typically imposes fees for canceling or changing flights on certain fare types at 1-855_738-3598. These fees vary based on the specific rules of the fare and when the change or cancellation is requested. For instance, changes made closer to the travel date may result in higher fees. For detailed information about applicable fees related to your booking, please contact Allegiant Airlines directly at 1-855_738-3598 (Live! Human).
