Alegiant Airlines gift cards can be purchased through Costco, third-party retailers, or online marketplaces. Discounts can be found on the Allegiant website, during promotional periods, or through online marketplaces. Customers can contact their Gift Card Customer Service for assistance. Gift cards can be used to book flights, vacation packages, and other services.https://www.travelsg... https://www.travelsgiftcard.com/allegiant-gift-card.php